D-Link AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router DIR-842 User Manual

AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router DIR-842

User Manual
DIR-842
AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router
January 2021

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Contents

Chapter 1. Introduction…………………………………..5

Contents and Audience……………………………………………….5

Conventions………………………………………………………..5

Document Structure………………………………………………….5

Chapter 2. Overview………………………………………6

General Information…………………………………………………6

Specifications……………………………………………………..8

Product Appearance…………………………………………………14

Upper Panel……………………………………………………..14

Back and Bottom Panels……………………………………………16

Delivery Package…………………………………………………..18

Chapter 3. Installation and Connection…………………….19

Before You Begin…………………………………………………..19

Connecting to PC…………………………………………………..20

PC with Ethernet Adapter………………………………………….20

Obtaining IP Address Automatically (OS Windows 7)……………………21

Obtaining IP Address Automatically (OS Windows 10)…………………..26

PC with Wi-Fi Adapter…………………………………………….30

Obtaining

IP

Address

Automatically

and

Connecting

to Wireless Network (OS Windows 7)…………………………………31

Obtaining

IP

Address

Automatically

and

Connecting

to Wireless Network (OS Windows 10)………………………………..34

Connecting to Web-based Interface……………………………………37

Web-based Interface Structure……………………………………….39

Summary Page…………………………………………………….39

Home Page……………………………………………………….41

Menu Sections……………………………………………………42

Notifications……………………………………………………43

Chapter 4. Configuring via Web-based Interface……………..44

Initial Configuration Wizard………………………………………..44

Selecting Operation Mode………………………………………….46

Router………………………………………………………..46

Access Point or Repeater………………………………………..47 Changing LAN IPv4 Address…………………………………………49 Wi-Fi Client…………………………………………………….50 Configuring WAN Connection………………………………………..52

Static IPv4 Connection………………………………………….53

Static IPv6 Connection………………………………………….54

PPPoE,

IPv6

PPPoE,

PPPoE

Dual

Stack,

PPPoE + Dynamic IP (PPPoE Dual Access) Connections…………………55

PPPoE + Static IP (PPPoE Dual Access) Connection…………………..56

PPTP + Dynamic IP or L2TP + Dynamic IP Connection………………….57

PPTP + Static IP or L2TP + Static IP Connection……………………58 Configuring Wireless Network………………………………………59 Configuring LAN Ports for IPTV/VoIP………………………………..61 Changing Web-based Interface Password………………………………63 Connection of Multimedia Devices…………………………………….65

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual
Statistics………………………………………………………..68 Network Statistics……………………………………………….68 DHCP……………………………………………………………69 Routing Table……………………………………………………70 Clients and Sessions……………………………………………..71 Port Statistics………………………………………………….72 Multicast Groups…………………………………………………73
Connections Setup………………………………………………….74 WAN…………………………………………………………….74 Creating Dynamic IPv4 or Static IPv4 WAN Connection………………..76 Creating Dynamic IPv6 or Static IPv6 WAN Connection………………..80 Creating PPPoE WAN Connection……………………………………84 Creating PPTP or L2TP WAN Connection……………………………..88 Creating PPPoE IPv6 or PPPoE Dual Stack WAN Connection……………..93 LAN…………………………………………………………….98 IPv4………………………………………………………….98 IPv6…………………………………………………………103 WAN Reservation…………………………………………………106
Wi-Fi……………………………………………………………108 Basic Settings………………………………………………….108 Client Management……………………………………………….116 WPS……………………………………………………………117 Using WPS Function via Web-based Interface……………………….119 Using WPS Function without Web-based Interface……………………120 WMM……………………………………………………………121 Client…………………………………………………………124 Client Shaping………………………………………………….127 Additional……………………………………………………..129 MAC Filter……………………………………………………..133 Roaming………………………………………………………..136
Advanced…………………………………………………………138 VLAN…………………………………………………………..139 DNS……………………………………………………………141 DDNS…………………………………………………………..143 Ports Settings………………………………………………….145 Bandwidth Control……………………………………………….148 Traffic Segmentation…………………………………………….149 Redirect……………………………………………………….150 Routing………………………………………………………..151 TR-069 Client…………………………………………………..153 Remote Access…………………………………………………..155 UPnP IGD……………………………………………………….157 UDPXY………………………………………………………….158 IGMP/MLD……………………………………………………….160 ALG/Passthrough…………………………………………………162 IPsec………………………………………………………….164
Firewall…………………………………………………………170 IP Filter………………………………………………………170 Virtual Servers…………………………………………………174 DMZ……………………………………………………………177 MAC Filter……………………………………………………..178 URL Filter……………………………………………………..180 DoS Protection………………………………………………….182
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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual
System…………………………………………………………..185 Configuration…………………………………………………..186 Firmware Update…………………………………………………188 Local Update………………………………………………….189 Remote Update…………………………………………………190 Log……………………………………………………………191 Ping…………………………………………………………..194 Traceroute……………………………………………………..196 Telnet…………………………………………………………198 System Time…………………………………………………….199
Yandex.DNS……………………………………………………….201 Settings……………………………………………………….201 Devices and Rules……………………………………………….203
Chapter 5. Operation Guidelines………………………….205
Safety Rules and Conditions………………………………………..205 Wireless Installation Considerations………………………………..206
Chapter 6. Abbreviations and Acronyms…………………….207
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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Introduction

CHAPTER 1. INTRODUCTION

Contents and Audience
This manual describes the router DIR-842 and explains how to configure and operate it. This manual is intended for users familiar with basic networking concepts, who create an in-home local area network, and system administrators, who install and configure networks in offices.
Conventions

Example

Description

text

The body text of the manual.

Before You Begin

A reference to a chapter or section of this manual.

“Quick Guide”

Installation A reference to a document.

Change

A name of a menu, menu item, control (field, checkbox, drop-down list, button, etc.).

192.168.0.1

Data that you should enter in the specified field.

! Information

An important note.

Document Structure
Chapter 1 describes the purpose and structure of the document. Chapter 2 gives an overview of the router’s hardware and software features, describes its appearance and the package contents. Chapter 3 explains how to install the router DIR-842 and configure a PC in order to access its webbased interface. Chapter 4 describes all pages of the web-based interface in detail. Chapter 5 includes safety instructions and tips for networking. Chapter 6 introduces abbreviations and acronyms most commonly used in User Manuals for D-Link customer premises equipment.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

CHAPTER 2. OVERVIEW
General Information
The DIR-842 device is a wireless dual band gigabit router with a built-in 4-port switch. It provides a fast and simple way to create a wireless and wired network at home or in an office. Also you are able to connect the wireless router DIR-842 to a cable or DSL modem or to a private Ethernet line and use a high-speed Internet connection to successfully fulfill a wide range of professional tasks. The built-in 4-port switch enables you to connect Ethernet-enabled computers, game consoles, and other devices to your network. Using the DIR-842 device, you are able to quickly create a high-speed wireless network at home or in your office, which lets computers and mobile devices access the Internet virtually anywhere (within the operational range of your wireless network). Simultaneous activity of 2.4GHz band and 5GHz band allows performing a wide range of tasks. The router can operate as a base station for connecting wireless devices of the standards 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac (at the wireless connection rate up to 1167Mbps1). The router supports multiple functions for the wireless interface: several security standards (WEP, WPA/WPA2/WPA3), MAC address filtering, WPS, WMM. In addition, the device is equipped with a button for switching the Wi-Fi network off/on. If needed, for example, when you leave home, you can easily switch the router’s WLAN by pressing the button, and devices connected to the LAN ports of the router will stay online. Multi-user MIMO technology allows to distribute the router’s resources to let multiple wireless clients use the Wi-Fi network efficiently, keeping high rates for HD media streaming, lag-free gaming, and fast transfer of large files. Transmit Beamforming technology allows to flexibly change the antennas’ radiation pattern and to redistribute the signal directly to wireless devices connected to the router. Smart adjustment of Wi-Fi clients is useful for networks based on several D-Link access points or routers ­ when the smart adjustment function is configured on each of them, a client always connects to the access point (router) with the highest signal level. Support of guest Wi-Fi network allows you to create a separate wireless network with individual security settings and maximum rate limitation. Devices connected to the guest network will be able to access the Internet, but will be isolated from the devices and resources of the router’s LAN. The wireless router DIR-842 includes a built-in firewall. The advanced security functions minimize threats of hacker attacks, prevent unwanted intrusions to your network, and block access to unwanted websites for users of your LAN. In addition, the router supports IPsec and allows to create secure VPN tunnels. Built-in Yandex.DNS service protects against malicious and fraudulent web sites and helps to block access to adult content on children’s devices. You can configure the settings of the wireless router DIR-842 via the user-friendly web-based interface (the interface is available in several languages).

1 Up to 300Mbps for 2.4GHz and up to 867Mbps for 5GHz. Page 6 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

The configuration wizard allows you to quickly switch DIR-842 to one of the following modes: router (for connection to a wired or wireless ISP), access point, repeater, or client, and then configure all needed setting for operation in the selected mode in several simple steps.
Also DIR-842 supports configuration and management via mobile application for Android and iPhone smartphones.
You can simply update the firmware: the router itself finds approved firmware on D-Link update server and notifies when ready to install it.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Specifications*
Hardware
Processor RAM Flash Interfaces LEDs
Buttons
Antenna MIMO Power connector
Software
WAN connection types

· RTL8197FS (1GHz)
· 64MB, DDR2, built in processor
· 8MB, SPI · 10/100/1000BASE-T WAN port · 4 10/100/1000BASE-T LAN ports · Power · Internet · 4 LAN LEDs · WLAN 2.4G · WLAN 5G · WPS · POWER button to power on/power off · WIFI button to enable/disable wireless network · WPS button to set up wireless connection · RESET button to restore factory default settings · Four external non-detachable antennas (5dBi gain)
· 2 x 2, MU-MIMO
· Power input connector (DC)
· PPPoE · IPv6 PPPoE · PPPoE Dual Stack · Static IPv4 / Dynamic IPv4 · Static IPv6 / Dynamic IPv6 · PPPoE + Static IP (PPPoE Dual Access) · PPPoE + Dynamic IP (PPPoE Dual Access) · PPTP/L2TP + Static IP · PPTP/L2TP + Dynamic IP

Overview

* The device features are subject to change without notice. For the latest versions of the firmware and relevant documentation, visit www.dlink.ru.
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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

Software
Network functions
Firewall functions VPN Management and monitoring

· Support of IEEE 802.1X for Internet connection · DHCP server/relay · Advanced configuration of built-in DHCP server · Stateful/Stateless mode for IPv6 address assignment, IPv6 prefix delegation · Automatic obtainment of LAN IP address (for access point/repeater/client
modes) · DNS relay · Dynamic DNS · Static IPv4/IPv6 routing · IGMP/MLD Proxy · RIP · Support of UPnP IGD · Support of VLAN · WAN ping respond · Support of SIP ALG · Support of RTSP · WAN failover · Autonegotiation of speed, duplex mode, and flow control / Manual speed and
duplex mode setup for each Ethernet port · Setup of maximum TX rate for each port of the router · Built-in UDPXY application · Segmentation of traffic between LAN ports
· Network Address Translation (NAT) · Stateful Packet Inspection (SPI) · IPv4/IPv6 filter · MAC filter · URL filter · DMZ · Prevention of ARP and DDoS attacks · Virtual servers · Built-in Yandex.DNS web content filtering service
· IPsec/PPTP/L2TP/PPPoE pass-through · IPsec tunnels
· Local and remote access to settings through TELNET/WEB (HTTP/HTTPS) · Multilingual web-based interface for configuration and management · Support of D-Link Assistant application for Android and iPhone smartphones · Notification on connection problems and auto redirect to settings · Firmware update via web-based interface · Automatic notification on new firmware version · Saving/restoring configuration to/from file · Support of logging to remote host · Automatic synchronization of system time with NTP server and manual
time/date setup · Ping utility · Traceroute utility · TR-069 client · Automatic reboot on schedule

Wireless Module Parameters
Standards

· IEEE 802.11ac Wave 2 · IEEE 802.11a/b/g/n

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

Wireless Module Parameters
Frequency range The frequency range depends upon the radio frequency regulations applied in your country Wireless connection security
Advanced functions
Wireless connection rate
Transmitter output power The maximum value of the transmitter output power depends upon the radio frequency regulations applied in your country

· 2400 ~ 2483.5MHz · 5150 ~ 5350MHz · 5650 ~ 5850MHz
· WEP · WPA/WPA2 (Personal/Enterprise) · WPA3 (Personal) · filter · WPS (PBC/PIN)
· Support of client mode · WMM (Wi-Fi QoS) · Information on connected Wi-Fi clients · Advanced settings · Smart adjustment of Wi-Fi clients · Guest Wi-Fi / support of MBSSID · Rate limitation for wireless network/separate MAC addresses · Periodic scan of channels, automatic switch to least loaded channel · Support of 802.11ac (5GHz) and 802.11n (2.4GHz) TX Beamforming · Autonegotiation of channel bandwidth in accordance with environment
conditions (20/40 Coexistence) · Support of STBC
· IEEE 802.11a: 6, 9, 12, 18, 24, 36, 48, and 54Mbps · IEEE 802.11b: 1, 2, 5.5, and 11Mbps · IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54Mbps · IEEE 802.11n (2.4GHz): from 6.5 to 300Mbps (MCS0­MCS15) · IEEE 802.11n (5GHz): from 6.5 to 300Mbps (from MCS0 to MCS15) · IEEE 802.11ac (5GHz): from 6.5 to 867Mbps (from MCS0 to MCS9)
· 802.11a (typical at room temperature 25 °C) 14dBm at 6, 9, 12, 18, 24Mbps 13dBm at 36Mbps 12.5dBm at 48Mbps 12dBm at 54Mbps
· 802.11b (typical at room temperature 25 °C) 15dBm at 1, 2, 5.5, 11Mbps
· 802.11g (typical at room temperature 25 °C) 15dBm at 6, 9, 12, 18, 24, 36, 48, 54Mbps
· 802.11n (typical at room temperature 25 °C) 2.4GHz, HT20 15dBm at MCS0~7 2.4GHz, HT40 15dBm at MCS0~7 5GHz, HT20 14dBm at MCS0~4 13dBm at MCS5 12.5dBm at MCS6 12dBm at MCS7 5GHz, HT40 14dBm at MCS0~2 13dBm at MCS3~4 12.5dBm at MCS5~6 12dBm at MCS7

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

Wireless Module Parameters
Receiver sensitivity

· 802.11ac (typical at room temperature 25 °C) VHT20 14dBm at MCS0~4 13dBm at MCS5 12dBm at MCS6 11dBm at MCS7/8 VHT40 14dBm at MCS0~2 13dBm at MCS3~4 12dBm at MCS5~6 11dBm at MCS7/8/9 VHT80 14dBm at MCS0~4 13dBm at MCS5~6 12dBm at MCS7 11dBm at MCS8/9
· 802.11a (typical at PER < 10% (1000-byte PDUs) at room temperature 25 °C) -82dBm at 6Mbps -81dBm at 9Mbps -79dBm at 12Mbps -77dBm at 18Mbps -74dBm at 24Mbps -70dBm at 36Mbps -66dBm at 48Mbps -65dBm at 54Mbps
· 802.11b (typical at PER = 8% (1000-byte PDUs) at room temperature 25 °C) -80dBm at 1Mbps -80dBm at 2Mbps -76dBm at 5.5Mbps -76dBm at 11Mbps
· 802.11g (typical at PER < 10% (1000-byte PDUs) at room temperature 25 °C) -82dBm at 6Mbps -81dBm at 9Mbps -79dBm at 12Mbps -77dBm at 18Mbps -74dBm at 24Mbps -70dBm at 36Mbps -66dBm at 48Mbps -65dBm at 54Mbps
· 802.11n (typical at PER = 10% (1000-byte PDUs) at room temperature 25 °C) 2.4GHz, HT20 -82dBm at MCS0 -79dBm at MCS1 -77dBm at MCS2 -74dBm at MCS3 -70dBm at MCS4 -66dBm at MCS5 -65dBm at MCS6 -64dBm at MCS7 2.4GHz, HT40 -79dBm at MCS0 -76dBm at MCS1 -74dBm at MCS2 -71dBm at MCS3 -67dBm at MCS4 -63dBm at MCS5 -62dBm at MCS6 -61dBm at MCS7

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

Wireless Module Parameters
Modulation schemes

5GHz, HT20 -82dBm at MCS0 -79dBm at MCS1 -77dBm at MCS2 -74dBm at MCS3 -70dBm at MCS4 -66dBm at MCS5 -65dBm at MCS6 -64dBm at MCS7 5GHz, HT40 -79dBm at MCS0 -76dBm at MCS1 -74dBm at MCS2 -71dBm at MCS3 -67dBm at MCS4 -63dBm at MCS5 -62dBm at MCS6 -61dBm at MCS7
· 802.11ac (typical at PER = 10% (1000-byte PDUs) at room temperature 25 °C) VHT20 -82dBm at MCS0 -79dBm at MCS1 -77dBm at MCS2 -74dBm at MCS3 -70dBm at MCS4 -66dBm at MCS5 -65dBm at MCS6 -64dBm at MCS7 -56dBm at MCS8 VHT40 -79dBm at MCS0 -76dBm at MCS1 -74dBm at MCS2 -71dBm at MCS3 -67dBm at MCS4 -63dBm at MCS5 -62dBm at MCS6 -61dBm at MCS7 -56dBm at MCS8 -54dBm at MCS9 VHT80 -76dBm at MCS0 -73dBm at MCS1 -71dBm at MCS2 -68dBm at MCS3 -64dBm at MCS4 -60dBm at MCS5 -59dBm at MCS6 -58dBm at MCS7 -53dBm at MCS8 -51dBm at MCS9
· 802.11a: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11b: DQPSK, DBPSK, DSSS, CCK · 802.11g: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11n: BPSK, QPSK, 16QAM, 64QAM with OFDM · 802.11ac: BPSK, QPSK, 16QAM, 64QAM, up to 256QAM with OFDM

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Physical Parameters
Dimensions (L x W x H)

· 205 x 136 x 44 mm (8.07 x 5.35 x 1.73 in)

Operating Environment
Power Temperature
Humidity

· Output: 12V DC, 1A
· Operating: from 0 to 40 °C · Storage: from -20 to 65 °C
· Operating: from 10% to 90% (non-condensing) · Storage: from 5% to 95% (non-condensing)

Overview

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual
Product Appearance
Upper Panel

Overview

LED
Power
Internet

Figure 1. Upper panel view.

Mode

Description

Solid green

The router is powered on.

No light

The router is powered off.

Solid green

The WAN cable is connected to the port.

Blinking green

Data transfer through the WAN port.

No light

The WAN cable is not connected.

Page 14 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

LED
LAN 1-4
WLAN 2.4G WLAN 5G
WPS

Mode
Solid green
Blinking green
No light Solid green Blinking green No light Blinking green No light

Description
A device (computer) is connected to the relevant port, the connection is on.
Data transfer through the relevant LAN port. When the router is being loaded, the LEDs are blinking one at a time. When the firmware is being upgraded, the LEDs are blinking two at a time.
The cable is not connected to the relevant port.
The router’s WLAN of the relevant band is on.
Data transfer through the Wi-Fi network of the relevant band.
The router’s WLAN of the relevant band is off.
Attempting to add a wireless device via the WPS function.
The WPS function is not in use.

Page 15 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual
Back and Bottom Panels

Overview

Figure 2. Back panel view.

Port

Description

WIFI

A button to enable/disable wireless network.
To disable the router’s wireless network: with the device turned on, press the button and release. The WLAN 2.4G and WLAN 5G LEDs should turn off.

WPS

A button to set up wireless connection (the WPS function).
To use the WPS function: with the device turned on, push the button, hold it for 2 seconds, and release. The WPS LED should start blinking.

LAN 1-4

4 Ethernet ports to connect computers or network devices.

WAN

A port to connect to a cable or DSL modem or to a private Ethernet line (it is recommended to use the cable included in the delivery package).

POWER

A button to turn the router on/off.

Also, the power connector is located on the back panel of the router.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

The RESET button located on the bottom panel of the router is designed to restore the factory default settings. To restore the factory defaults, push the button (with the device turned on), hold it for 10 seconds, and then release the button.
The device is also equipped with four external non-detachable Wi-Fi antennas.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Overview

Delivery Package
The following should be included: · Router DIR-842 · Power adapter DC 12V/1A · Ethernet cable · “Quick Installation Guide” (brochure).
The “User Manual” and “Quick Installation Guide” documents are available on D-Link website (see www.dlink.ru).

!

Using a power supply with a different voltage rating than the one included will cause damage and void the warranty for this product.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

CHAPTER 3. INSTALLATION AND CONNECTION
Before You Begin
Please, read this manual prior to installing the device. Make sure that you have all the necessary information and equipment. Computer or Mobile Device Configuration of the wireless dual band gigabit router with a built-in 4-port switch DIR-842 (hereinafter referred to as “the router”) is performed via the built-in web-based interface. The webbased interface is available from any operating system that supports a web browser. Also you can use D-Link Assistant application for Android or iPhone mobile devices (smartphones or tablets). PC Web Browser The following web browsers are recommended:
· Apple Safari 8 and later · Google Chrome 48 and later · Microsoft Internet Explorer 10 and later · Microsoft Edge 20.10240 and later · Mozilla Firefox 44 and later · Opera 35 and later. For successful operation, JavaScript should be enabled on the web browser. Make sure that JavaScript has not been disabled by other software (such as virus protection or web user security packages) running on your computer. Wired or Wireless NIC (Ethernet or Wi-Fi Adapter) Any computer that uses the router should be equipped with an Ethernet or Wi-Fi adapter (NIC). If your computer is not equipped with such a device, install an Ethernet or Wi-Fi adapter prior to using the router. Wireless Connection Wireless workstations from your network should be equipped with a wireless 802.11a, b, g, n, or ac NIC (Wi-Fi adapter). In addition, you should specify the values of SSID, channel number and security settings defined in the web-based interface of the router for all these wireless workstations.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

Connecting to PC
PC with Ethernet Adapter
1. Connect an Ethernet cable between any of LAN ports located on the back panel of the router and the Ethernet port of your PC.
2. Connect the power cord to the power connector port on the back panel of the router, then plug the power adapter into an electrical outlet or power strip.
3. Turn on the router by pressing the POWER button on its back panel. Then make sure that your PC is configured to obtain an IP address automatically (as DHCP client).

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

Obtaining IP Address Automatically (OS Windows 7)
1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category
view (the Category value is selected from the View by drop-down list in the top right corner of the window), choose the View network status and tasks line under the Network and Internet section.)

Figure 3. The Control Panel window. Page 21 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

3. In the menu located on the left part of the window, select the Change adapter settings line.

Figure 4. The Network and Sharing Center window. Page 22 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

4. In the opened window, right-click the relevant Local Area Connection icon and select the Properties line in the menu displayed.

Figure 5. The Network Connections window.

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

5. In the Local Area Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.

Figure 6. The Local Area Connection Properties window. Page 24 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 7. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the OK button in the connection properties window.
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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

Obtaining IP Address Automatically (OS Windows 10)
1. Click the Start button and proceed to the Settings window. 2. Select the Network & Internet section.

Figure 8. The Windows Settings window. Page 26 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

3. In the Change your network settings section, select the Change adapter options line.

Figure 9. The Network & Internet window. Page 27 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

4. In the opened window, right-click the relevant Local Area Connection icon and select the Properties line in the menu displayed.

Figure 10. The Network Connections window.
5. In the Local Area Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.

Figure 11. The local area connection properties window. Page 28 of 210

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 12. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the Close button in the connection properties window.
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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

PC with Wi-Fi Adapter
1. Connect the power cord to the power connector port on the back panel of the router, then plug the power adapter into an electrical outlet or power strip.
2. Turn on the router by pressing the POWER button on its back panel. 3. Make sure that your Wi-Fi adapter is on. As a rule, modern notebooks with built-in wireless
NICs are equipped with a button or switch that turns on/off the wireless adapter (refer to your PC documents). If your PC is equipped with a pluggable wireless NIC, install the software provided with your Wi-Fi adapter. Then make sure that your Wi-Fi adapter is configured to obtain an IP address automatically (as DHCP client).

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DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi Gigabit Router User Manual

Installation and Connection

Obtaining IP Address Automatically and Connecting to Wireless Network (OS Windows 7)
1. Click the Start button and proceed to the Control Panel window. 2. Select the Network and Sharing Center section. (If the Control Panel has the category
view (the Category value is selected from the View by drop-down list in the top right corner of the window), choose the View network status and tasks line under the Network and Internet section.)

Figure 13. The Control Panel window.
3. In the menu located on the left part of the window, select the Change adapter settings line.
4. In the opened window, right-click the relevant Wireless Network Connection icon. Make sure that your Wi-Fi adapter is on, then select the Properties line in the menu displayed.
5. In the Wireless Network Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.
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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 14. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the OK button in the connection properties window. 8. To open the list of available wireless networks, select the icon of the wireless network
connection and click the Connect To button or left-click the network icon in the notification area located on the right side of the taskbar.
Figure 15. The notification area of the taskbar.
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9. In the opened Wireless Network Connection window, select the wireless network DIR842 (for operating in the 2.4GHz band) or DIR-842-5G (for operating in the 5GHz band) and click the Connect button.

Figure 16. The list of available networks.
10. In the opened window, enter the network key (see WPS PIN on the barcode label on the bottom panel of the device) in the Security key field and click the OK button.
11. Wait for about 20-30 seconds. After the connection is established, the network icon will be displayed as the signal level scale.
If you perform initial configuration of the router via Wi-Fi connection, note that
! immediately after changing the wireless default settings of the router you will need to reconfigure the wireless connection using the newly specified settings.

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Obtaining IP Address Automatically and Connecting to Wireless Network (OS Windows 10)
1. Click the Start button and proceed to the Settings window. 2. Select the Network & Internet section.

Figure 17. The Windows Settings window.
3. In the Change your network settings section, select the Change adapter options line.
4. In the opened window, right-click the relevant Wireless Network Connection icon. Make sure that your Wi-Fi adapter is on, then select the Properties line in the menu displayed.
5. In the Wireless Network Connection Properties window, on the Networking tab, select the Internet Protocol Version 4 (TCP/IPv4) line. Click the Properties button.
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6. Make sure that the Obtain an IP address automatically and Obtain DNS server address automatically choices of the radio buttons are selected. Click the OK button.

Figure 18. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the Close button in the connection properties window. 8. To open the list of available wireless networks, select the icon of the wireless network
connection and click the Connect To button or left-click the network icon in the notification area located on the right side of the taskbar.
Figure 19. The notification area of the taskbar.
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9. In the opened Wireless Network Connection window, select the wireless network DIR842 (for operating in the 2.4GHz band) or DIR-842-5G (for operating in the 5GHz band) and click the Connect button.

Figure 20. The list of available networks.
10. In the opened window, enter the network key (see WPS PIN on the barcode label on the bottom panel of the device) in the Security key field and click the Next button.
11. Allow or forbid your PC to be discoverable by other devices on this network (Yes / No).

Figure 21. PC discovery settings.
12. Wait for about 20-30 seconds. After the connection is established, the network icon will be displayed as a dot with curved lines indicating the signal level.
If you perform initial configuration of the router via Wi-Fi connection, note that
! immediately after changing the wireless default settings of the router you will need to reconfigure the wireless connection using the newly specified settings.

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Connecting to Web-based Interface
When you have configured your computer, you can access the web-based interface and configure needed parameters (create a WAN connection, change the parameters of the wireless network, specify the settings of the firewall, etc.).
For security reasons, DIR-842 with default settings cannot connect to the Internet. To get
! started, please set your own password used to access the web-based interface and, if needed, configure other settings recommended by your ISP.
Start a web browser (see the Before You Begin section, page 19). In the address bar of the web browser, enter the domain name of the router (by default, dlinkrouter.local) with a dot at the end and press the Enter key. Also you can enter the IP address of the device (by default, 192.168.0.1).

Figure 22. Connecting to the web-based interface of the DIR-842 device.
If the error “The page cannot be displayed” (or “Unable to display the page”/”Could not
! connect to remote server”) occurs upon connecting to the web-based interface of the router, make sure that you have properly connected the router to your computer.
If the device has not been configured previously or the default settings have been restored, after access to the web-based interface the Initial Configuration Wizard opens (see the Initial Configuration Wizard section, page 44).

Figure 23. The page for running the Initial Configuration Wizard.

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If you configured the device previously, after access to the web-based interface the login page opens. Enter the username (admin) in the Username field and the password you specified in the Password field, then click the LOGIN button.

Figure 24. The login page.
If you enter a wrong password several times, the web-based interface will be blocked for a while. Please wait for one minute and reenter the password you specified.

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Web-based Interface Structure
Summary Page
On the Summary page, detailed information on the device state is displayed.

Figure 25. The summary page. Page 39 of 210

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The Device Information section displays the model and hardware version of the router, the firmware version, and other data.
To contact the technical support group (to send an e-mail), left-click the support e-mail address. After clicking the line, the e-mail client window for sending a new letter to the specified address opens.
To change the operation mode of the device, left-click the name of the mode in the Device mode line. In the opened window, click the Initial Configuration Wizard link (for the detailed description of the Wizard, see the Initial Configuration Wizard section, page 44).
If needed, you can disable the LEDs of the device (except the Power LED). To do this, move the Enable LEDs switch to the left. In order to enable the LEDs, move the switch to the right and reboot the device.
The Wi-Fi 2.4 GHz and Wi-Fi 5 GHz sections display data on the state of the device’s wireless network, its name and the authentication type, and availability of an additional wireless network in the relevant band.
In the WAN section, data on the type and status of the existing WAN connection are displayed.
In the LAN section, the IPv4 and IPv6 address of the router and the number of wired and wireless clients of the device are displayed.
The LAN Ports section displays the state of the device’s LAN ports and data transfer mode of active ports.
The Yandex.DNS section displays the Yandex.DNS service state and operation mode. To enable the Yandex.DNS service, move the Enable switch to the right. If needed, change the operation mode of the service.

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Home Page
The Home page displays links to the most frequently used pages with device’s settings.

Figure 26. The Home page.
Other settings of the router are available in the menu in the left part of the page.
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Menu Sections
To configure the router use the menu in the left part of the page. In the Initial Configuration section you can run the Initial Configuration Wizard. The Wizard allows you to configure the router for operation in the needed mode and specify all parameters necessary for getting started (for the description of the Wizard, see the Initial Configuration Wizard section, page 44). The pages of the Statistics section display data on the current state of the router (for the description of the pages, see the Statistics section, page 68). The pages of the Connections Setup section are designed for configuring basic parameters of the LAN interface of the router and creating a connection to the Internet (for the description of the pages, see the Connections Setup section, page 74). The pages of the Wi-Fi section are designed for specifying all needed settings of the router’s wireless network (for the description of the pages, see the Wi-Fi section, page 108). The pages of the Advanced section are designed for configuring additional parameters of the router (for the description of the pages, see the Advanced section, page 138). The pages of the Firewall section are designed for configuring the firewall of the router (for the description of the pages, see the Firewall section, page 170). The pages of the System section provide functions for managing the internal system of the router (for the description of the pages, see the System section, page 185). The pages of the Yandex.DNS section are designed for configuring the Yandex.DNS web content filtering service (for the description of the pages, see the Yandex.DNS section, page 201). To exit the web-based interface, click the Logout line of the menu.

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Notifications
The router’s web-based interface displays notifications in the top right part of the page.

Figure 27. The web-based interface notifications.
Click the icon displaying the number of notifications to view the complete list and click the relevant button.

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CHAPTER 4. CONFIGURING VIA WEB-BASED INTERFACE
Initial Configuration Wizard
To start the Initial Configuration Wizard, go to the Initial Configuration section. On the opened page, click the OK button and wait until the factory default settings are restored.

Figure 28. Restoring the default settings in the Wizard.
If you perform initial configuration of the router via Wi-Fi connection, please make sure that you are connected to the wireless network of DIR-842 (see the WLAN name (SSID) on the barcode label on the bottom panel of the device) and click the NEXT button.

Figure 29. Checking connection to the wireless network.
Click the START button.

Figure 30. Starting the Wizard.

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On the opened page, click YES in order to leave the current language of the web-based interface or click NO to select another language.

Figure 31. Selecting a language.
You can finish the wizard earlier and go to the menu of the web-based interface. To do this, click the ADVANCED SETTINGS button. On the opened page, change the default settings: specify the administrator password in the User’s interface password and Password confirmation fields and the name of the wireless network in the 2.4GHz and 5GHz bands in the Network name 2.4 GHz (SSID) and Network name 5 GHz (SSID) fields correspondingly. Then click the APPLY button.

Figure 32. Changing the default settings.
To continue the configuration of the router via the Wizard, click the CONTINUE button.
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Selecting Operation Mode
Select the needed operation mode and click the NEXT button.
Router In order to connect your device to a wired ISP, on the Device mode page, from the Connection method list, select the Wired connection value. Then from the Work mode list select the Router value. In this mode you can configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, configure LAN ports to connect an STB or VoIP phone, and set your own password for access to the web-based interface of the device.

Figure 33. Selecting an operation mode. The Router mode.
In order to connect your device to a wireless ISP (WISP), on the Device mode page, from the Connection method list, select the Wi-Fi value. Then from the Work mode list select the WISP Repeater value. In this mode you can connect your device to another access point, configure a WAN connection, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 34. Selecting an operation mode. The WISP Repeater mode. Page 46 of 210

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Access Point or Repeater
In order to connect your device to a wired router for adding a wireless network to the existing local network, on the Device mode page, from the Connection method list, select the Wired connection value. Then from the Work mode list select the Access point value. In this mode you can change the LAN IP address, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 35. Selecting an operation mode. The Access point mode.
In order to connect your device to a wireless router for extending the range of the existing wireless network, on the Device mode page, from the Connection method list, select the Wi-Fi value. Then from the Work mode list select the Repeater value. In this mode you can change the LAN IP address, connect your device to another access point, set your own settings for the wireless network in the 2.4GHz and 5GHz bands, and set your own password for access to the web-based interface of the device.

Figure 36. Selecting an operation mode. The Repeater mode. Page 47 of 210

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In order to let wired PCs connected to your device access the network of a wireless router, on the Device mode page, from the Connection method list, select the Wi-Fi value. Then from the Work mode list select the Client value. In this mode you can change the LAN IP address, connect your device to another access point, and set your own password for access to the web-based interface of the device.

Figure 37. Selecting an operation mode. The Client mode.

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Changing LAN IPv4 Address
This configuration step is available for the Access point, Repeater, and Client modes. 1. Select the Automatic obtainment of IPv4 address to let DIR-842 automatically obtain the LAN IPv4 address. 2. In the Hostname field, you should specify a domain name of the router using which you can access the web-based interface after finishing the Wizard. Enter a new domain name of the router ending with .local or leave the value suggested by the router.
! In order to access the web-based interface using the domain name, in the address bar of the web browser, enter the name of the router with a dot at the end.
If you want to manually assign the LAN IPv4 address for DIR-842, do not select the Automatic obtainment of IPv4 address checkbox and fill in the IP address, Subnet mask, Hostname fields and, if needed, the Gateway IP address field. Make sure that the assigned address does not coincide with the LAN IPv4 address of the router to which your device connects.

Figure 38. The page for changing the LAN IPv4 address.
3. Click the NEXT button to continue or click the BACK button to return to the previous page.
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Wi-Fi Client
This configuration step is available for the WISP Repeater, Repeater, and Client modes. 1. On the Wi-Fi lient page, click the WIRELESS NETWORKS button and select the network to which you want to connect in the opened window. When you select a network, the Network name (SSID) and BSSID fields are filled in automatically.
If you cannot find the needed network in the list, click the UPDATE LIST icon ( ).
2. If a password is needed to connect to the selected network, fill in the relevant field. Click the Show icon ( ) to display the entered password.

Figure 39. The page for configuring the Wi-Fi client.
If you connect to a hidden network, select the band where the hidden network operates from the Frequency band list and enter the network name in the Network name (SSID) field. Then select a needed value from the Network authentication list and then, if needed, enter the password in the relevant field.
When the Open or WEP authentication type is selected, the following settings are displayed on the page:

Parameter

Description

For Open authentication type only.
The checkbox activating WEP encryption. When the checkbox is Enable encryption WEP selected, the Default key ID drop-down list, the Encryption key
WEP as HEX checkbox, and four Encryption key fields are displayed on the page.

Default key ID

The number of the key (from first to fourth) which will be used for WEP encryption.

Encryption key WEP as Select the checkbox to set a hexadecimal number as a key for

HEX

encryption.

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Parameter

Description

Encryption key (1-4)

Keys for WEP encryption. The router uses the key selected from the Default key ID drop-down list. It is required to specify all the fields. Click the Show icon ( ) to display the entered key.

When the WPA-PSK, WPA2-PSK, WPA-PSK/WPA2-PSK mixed, WPA3-SAE, or WPA2PSK/WPA3-SAE mixed authentication type is selected, the following fields are displayed:

Parameter

Description

Password PSK

A password for WPA encryption. Click the Show icon ( ) to display the entered password.

Encryption type

An encryption method: TKIP, AES, or TKIP+AES.
TKIP and TKIP+AES encryption types are not available for WPA3-SAE and WPA2-PSK/WPA3-SAE mixed authentication types.

3. Click the NEXT button to continue or click the BACK button to return to the previous page.

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