D-Link DIR-842 User manual

Version 3.00 | 3/23/2017
AC1200 Wi-Fi Gigabit Router
User Manual
DIR-842

iD-Link DIR-842 User Manual
D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify any
person or organization of such revisions or changes.
Manual Revisions
Trademarks
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States
or other countries. iPhone, iPad, and iPod touch are registered trademarks of Apple Inc. Android is a trademark of Google, Inc.
All other company or product names mentioned herein are trademarks or registered trademarks of their respective companies.
Copyright © 2017 by D-Link Corporation.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission
from D-Link Corporation.
Power Usage
This device is an Energy Related Product (ErP) with High Network Availability (HiNA), and automatically switches to a
power-saving Network Standby mode within 1 minute of no packets being transmitted. It can also be turned o through a
power switch to save energy when it is not needed.
Network Standby: 2.28 watts
Switched O: 0.06 watts
Revision Date Description
3.00 July 11, 2017 • C1 version release
Preface

iiD-Link DIR-842 User Manual
Table of Contents
Preface................................................................................. i
Manual Revisions........................................................................... i
Trademarks ...................................................................................... i
Power Usage.................................................................................... i
Product Overview..............................................................1
Package Contents.........................................................................1
System Requirements.................................................................2
Introduction ................................................................................... 3
Features............................................................................................ 4
Hardware Overview..................................................................... 5
Connections ...........................................................................5
LEDs........................................................................................... 6
Installation......................................................................... 7
Before you Begin...........................................................................7
Wireless Installation Considerations......................................8
Hardware Installation..................................................................9
Getting Started................................................................11
Setup Wizard ................................................................................12
QRS Mobile App..........................................................................15
Conguration...................................................................19
Home ..............................................................................................20
Internet...................................................................................20
DIR-842...................................................................................21
Connected Clients..............................................................22
Settings ..........................................................................................23
Wizard.....................................................................................23
Internet...................................................................................23
IPv6 .....................................................................................25
Wireless ..................................................................................48
Guest Zone.......................................................................50
Network..................................................................................51
Features..........................................................................................53
QoS Engine............................................................................53
Firewall Settings..................................................................54
IPv4/IPv6 Rules ...............................................................56
Port Forwarding ..................................................................57
Virtual Server...................................................................58
Website Filter........................................................................59
Static Routes.........................................................................60
IPv6 .....................................................................................61
Dynamic DNS .......................................................................62
IPv6 Host...........................................................................63
Management................................................................................64
Time & Schedule .................................................................64
Time....................................................................................64
Schedule ...........................................................................65
System Log............................................................................66
System Admin......................................................................67
System ...............................................................................68
Table of Contents

iiiD-Link DIR-842 User Manual
Table of Contents
Upgrade .................................................................................69
Statistics.................................................................................70
Connect a Wireless Client to your Router ......................71
WPS Button...................................................................................71
Windows® 10................................................................................72
Windows® 8...................................................................................74
WPA/WPA2 ............................................................................74
Windows® 7...................................................................................76
WPA/WPA2 ............................................................................76
WPS..........................................................................................79
Windows Vista®............................................................................83
WPA/WPA2 ............................................................................84
Windows® XP................................................................................86
WPA/WPA2 ............................................................................87
Troubleshooting..............................................................89
Wireless Basics.................................................................93
What is Wireless?.........................................................................94
Tips...................................................................................................96
Wireless Modes............................................................................97
Networking Basics...........................................................98
Check your IP address...............................................................98
Statically Assign an IP address...............................................99
Technical Specications................................................100
Regulatory Information ................................................101

1D-Link DIR-842 User Manual
Section 1 - Product Overview
Product Overview
Package Contents
Note: Using a power supply with a dierent voltage rating than the one included with the DIR-842 will cause damage and void the warranty
for this product.
If any of the above items are missing, please contact your reseller.
DIR-842 AC1200 Wi-Fi Gigabit Router
Ethernet Cable
Power Adapter
WI-FI Conguration Note
Wi-Fi Conguration Note

2D-Link DIR-842 User Manual
Section 1 - Product Overview
Network Requirements
• An Ethernet-based cable or DSL modem
• IEEE 802.11ac/n/g/b/a wireless clients
• 10/100 Ethernet
Web-based Conguration
Utility Requirements
Computer with the following:
• Windows®, Macintosh, or Linux-based operating system
• An installed Ethernet adapter
Browser Requirements:
• Internet Explorer 10 or higher
• Firefox 28 or higher
• Safari 6.0 or higher
• Chrome 28 or higher
Windows®Users: Make sure you have the latest version of Java
installed. Visit www.java.com to download the latest version.
QRS Mobile Requirements • iPhone®/iPad®/iPod Touch® (iOS 6.0 or higher)
• Android™ device (2.33 or higher)
System Requirements

3D-Link DIR-842 User Manual
Section 1 - Product Overview
Introduction
The D-Link DIR-842 is an IEEE 802.11ac compliant device that delivers up to 3x faster speeds than 802.11n while staying backward
compatible with 802.11n/g/b/a devices. Connect the DIR-842 to a cable or DSL modem and provide high-speed Internet access
to multiple computers, game consoles, and media players. Create a secure wireless network to share photos, les, music, videos,
printers, and network storage. Powered by the 802.11ac technology and equipped with four external antennas, this router
provides superior wireless coverage for larger homes and oces, or for users running bandwidth-intensive applications. The
DIR-842 also includes a 4-port 10/100/1000 Gigabit Ethernet switch that connects to wired devices for uninterrupted video
calling and faster le transfers.
D-Link Intelligent QoS Technology helps to increase network eciency by analyzing wired and wireless network trac and
prioritizing it in order of importance. This way, important network trac such as VoIP and video streaming, take priority over
background network trac such as a le downloads and print tasks, ensuring you have optimal network performance.
The DIR-842 supports the latest wireless security features to help prevent unauthorized access, be it from over a wireless network
or the Internet. Support for WPA™ and WPA2™ standards ensure that you will be able to use the best possible encryption
regardless of your client devices. In addition, this router is equipped with a dual-active rewall (SPI and NAT) to prevent potential
attacks over the Internet.

4D-Link DIR-842 User Manual
Section 1 - Product Overview
• Ultimate Gigabit Wireless Networking - The DIR-842 provides up to 300 Mbps wireless connection in the 2.4
GHz band, and up to 867 Mbps wireless connection in the 5 GHz band with other 802.11ac and 802.11n wireless
clients. This capability allows users to participate in real-time activities online, such as video streaming, online
gaming, and real-time audio.The performance of this 802.11ac wireless router gives you the freedom of wireless
networking at speeds 3x faster than 802.11n.
• Compatible with 802.11n/g/b/a Devices - The DIR-842 is still fully compatible with the IEEE 802.11a, IEEE
802.11b, 802.11g and 802.11n, so it can connect with existing networking devices as well as PCI, USB, and
CardBus network adapters.
• Advanced Firewall Features - The web-based user interface displays a number of advanced network
management features including:
• Content Filtering - Easily applied content ltering based on MAC address, URL, and/or domain
name.
• Filter Scheduling - These lters can be scheduled to be active on certain days or for a duration of
hours or minutes.
• Secure Multiple/Concurrent Sessions - The DIR-842 can pass through VPN sessions. It supports
multiple and concurrent IPSec and PPTP sessions, so users behind the DIR-842 can securely access
corporate networks.
• User-friendly SetupWizard - Using its easy-to-use web-based user interface, the DIR-842 lets you control what
information is accessible to those on the wireless network, whether from the Internet or from your company’s
server. Congure your router to your specic settings within minutes.
* Maximum wireless signal rate derived from IEEE Standard 802.11a, 802.11g, 802.11n and 802.11ac specications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network trac, building materials and construction, and network overhead, lower actual data throughput rate. Environmental
conditions will adversely aect wireless signal range.
Features

5D-Link DIR-842 User Manual
Section 1 - Product Overview
Hardware Overview
Connections
1LAN Ports (1-4) Connect 10/100/1000 Ethernet devices such as computers, switches, storage (NAS) devices, and game consoles.
2Internet Port Using an Ethernet cable, connect your broadband modem to this port.
3Power Receptor Receptor for the supplied power adapter.
4Power Button Toggle the power button to power the DIR-842 on and o.
5WPS Button Press once to start the WPS process.
6Reset Button Press for 8 seconds to reset the router to default settings. The button is located at the underside of the device.
1 2 53 4
6

6D-Link DIR-842 User Manual
Section 1 - Product Overview
Hardware Overview
LEDs
1Power LED A solid light indicates that the device is powered on.
2Internet LED A solid light indicates that an Internet link is established.
3WPS LED A solid light indicates that the WPS handshake has been completed. The light will blink while the WPS
handshake is processing.
4WLAN LED A solid light indicates that the wireless is operating.
5LAN LEDs 1-4 A solid light indicates a connection to an Ethernet-enabled computer on ports 1-4 respectively.
1 32 4 5

7D-Link DIR-842 User Manual
Section 2 - Installation
Before you Begin
Installation
This section will walk you through the installation process. Placement of the router is very important. Do not place the router
in an enclosed area such as a closet, cabinet, or in an attic or garage.
• Please congure the router with the computer that was last connected directly to your modem.
• You can only use the Ethernet port on your modem. If you were using the USB connection before using the router,
then you must turn o your modem, disconnect the USB cable and connect an Ethernet cable to the Internet port
on the router, and then turn the modem back on. In some cases, you may need to call your ISP to change connection
types (USB to Ethernet).
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software such asWinPoET,
BroadJump, or EnterNet 300 from your computer or you will not be able to connect to the Internet.

8D-Link DIR-842 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the
operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings,
or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types
of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to
follow these basic guidelines:
1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum -
each wall or ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that
the number of walls or ceilings is minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle
appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position
devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better reception.
3. Building materials make a dierence. A solid metal door or aluminum studs may have a negative eect on range.
Try to position access points, wireless routers, and computers so that the signal passes through drywall or open
doorways. Materials and objects such as glass, steel, metal, walls with insulation, water (sh tanks), mirrors, le
cabinets, brick, and concrete will degrade your wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF
noise.
5. If you are using 2.4 GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security
systems), your wireless connection may degrade dramatically or drop completely. Make sure your 2.4 GHz phone
base is as far away from your wireless devices as possible. The base transmits a signal even if the phone in not
in use.

9D-Link DIR-842 User Manual
Section 2 - Installation
1. Turn o and unplug your cable or DSL broadband modem. This is required.
2. Position your router close to your modem and a computer. Place the router in an open area of your intended
work area for better wireless coverage.
3. Unplug the Ethernet cable from your modem (or existing router if upgrading) that is connected to your computer.
Plug it into the LAN port labeled 1on the back of your router. The router is now connected to your computer.
Hardware Installation
4
Computer DIR-842

10D-Link DIR-842 User Manual
Section 2 - Installation
4. Plug one end of the included blue Ethernet cable that came with your router into the yellow port labeled
INTERNET on the back of the router. Plug the other end of this cable into the Ethernet port on your modem.
5. Reconnect the power adapter to your cable or DSL broadband modem and wait for two minutes.
6. Connect the supplied power adapter into the power port on the back of the router and then plug it into a power
outlet or surge protector. Press the power button and verify that the power LED is lit. Allow 1 minute for the
router to boot up.
7. If you are connecting to a broadband service, you may be online already and further conguration will be optional.
4
INTERNET
4
INTERNET
modem
Power Outlet

11D-Link DIR-842 User Manual
Section 3 - Conguration
There are several dierent ways you can congure your router to connect to the Internet and connect to your clients:
• D-Link Setup Wizard - This wizard will launch when you log into the router for the rst time. Refer to Setup Wizard on
page 12.
• QRS Mobile App - Use your smart device to congure your router. Refer to QRS Mobile App on page 15.
• Manual Setup - Log into the router and manually congure your router (advanced users only). Refer to Manual Setup
on page 19.
Getting Started

12D-Link DIR-842 User Manual
Section 3 - Getting Started
The wizard is designed to guide you through a step-by-step process to
congure your new D-Link router and connect to the Internet.
Click Next to continue.
Setup Wizard
If this is your rst time installing the router, open your web browser and
enter http://dlinkrouter.local./ in the address bar. Alternatively, enter
the IP address of the router (default: http://192.168.0.1). Please refer to
Conguration on page 19.
Please wait while your router detects your Internet connection type. After
the router detects your Internet connection, you may need to enter your
ISP information such as your username and password.

13D-Link DIR-842 User Manual
Section 3 - Getting Started
If the router does not detect a valid Internet connection, a list of
connection types to choose from will be displayed.
Select your Internet connection type (this information can be obtained
from your Internet service provider) and click Next to continue.
If the router detected or you selected PPPoE, enter your PPPoE username
and password and click Next to continue.
Note: If your computer has PPPoE software, make sure to remove it from
your computer. The software is no longer needed and will not work through
a router.
If the router detected or you selected Static, enter the IP and DNS settings
supplied by your ISP. Click Next to continue.

14D-Link DIR-842 User Manual
Section 3 - Getting Started
For both the 2.4 GHz and 5 GHz segments, create a Wi-Fi network name
(SSID) using up to 32 characters.
Create aWi-Fi password (between 8-63 characters). Your wireless clients
will need to have this passphrase or key entered to be able to connect
to your wireless network.
Click Next to continue.
In order to secure the router, please enter a new password. You will be
prompted for this password every time you want to use the router’s web
conguration utility. Click Next to continue.
The Summary window will display your settings. Click Next if you are
satised, or click Back to make changes to them.

15D-Link DIR-842 User Manual
Section 3 - Getting Started
QRS Mobile App
QRS Mobile app allows you to install and congure your router from your mobile device.
Step 1
Search for the free QRS Mobile App on the iTunes Store or Google Play.
Step 2
Once your app is installed, you may now congure your router. Connect
to the router wirelessly by going to your wireless utility on your device.
Scan for the Wi-Fi name (SSID) as listed on the supplied info card. Select
and then enter your Wi-Fi password.
Step 3
Once you connect to the router, launch the QRS Mobile app from the
Home screen of your device.
Note: The following steps show the Android interface of the QRS Mobile
app. If you are using an iPhone, iPad, or iPod touch, the appearance may be
dierent to that of the screenshots, but the process is the same.
Note: The screenshots may be dierent depending on your mobile device’s OS version.

16D-Link DIR-842 User Manual
Section 3 - Getting Started
Step 4
You will see the welcome screen. Tap Start to proceed, then enter your
device password and tap Log In. Tap Next once the Operation Mode
screen appears.
Step 5
At this point, please ensure that your the router is connected to a modem.
Plug one end of the provided Ethernet cable into your DSL or cable
modem, and plug the other end into the port marked INTERNET on the
DIR-842.Tap Next to automatically detect your Internet connection and
proceed to the next step.