D-Link DIR-878 User manual

Version 1.02| 2020/02/17
User Manual
DIR-878
AC1900 MU-MIMO Wi-Fi Gigabit Router

iD-Link DIR-878 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.
All other company or product names mentioned herein are trademarks or registered trademarks of their respective companies.
Apple®, Apple logo®, Safari®, iPhone®, iPad®, iPod touch® and Macintosh® are trademarks of Apple Inc., registered in the U.S. and other countries.
App StoreSM is a service mark of Apple Inc.
Chrome™ browser, Google Play™ and Android™ are trademarks of Google Inc.
Internet Explorer®, Windows® and the Windows logo are trademarks of the Microsoft group of companies.
Copyright © 2020 by D-Link Corporation, Inc.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission from D-Link Corporation, Inc.
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: 4.85 watts
Switched O: 0.06 watts
Preface
Revision Date Description
1.02 2020/02/17 Initial release.

iiD-Link DIR-878 User Manual
Table of Contents
Table of Contents
Product Overview..............................................................1
Package Contents.........................................................................1
System Requirements.................................................................2
Introduction ................................................................................... 3
Features............................................................................................5
Hardware Overview.....................................................................6
LED Indicators........................................................................ 6
Back Panel ...............................................................................7
Installation......................................................................... 8
Before you Begin...........................................................................8
Wireless Installation Considerations......................................9
Hardware Setup ..........................................................................10
Completing Setup......................................................................13
D-Link Wi-Fi App .................................................................14
Setup Wizard ........................................................................16
Conguration...................................................................21
Home ..............................................................................................22
Internet...................................................................................22
DIR-878...................................................................................23
Connected Clients..............................................................24
Settings ..........................................................................................25
Wizard.....................................................................................25
Internet...................................................................................25
IPv6 .....................................................................................35
VLAN...................................................................................50
Wireless ..................................................................................52
Guest Zone.......................................................................55
Network..................................................................................56
Features..........................................................................................58
QoS Engine............................................................................58
Firewall Settings..................................................................59
IPv4/IPv6 Rules ...............................................................61
Port Forwarding ..................................................................62
Virtual Server...................................................................63
Website Filter........................................................................64
Static Routes.........................................................................65
IPv6 .....................................................................................66
Dynamic DNS .......................................................................67
IPv6 Host...........................................................................68
Quick VPN..............................................................................69
Management................................................................................71
Time & Schedule .................................................................71
Time....................................................................................71
Schedule ...........................................................................72
System Log............................................................................73
System Admin......................................................................75
System ...............................................................................76
User..........................................................................................77
Upgrade .................................................................................79

iiiD-Link DIR-878 User Manual
Table of Contents
Statistics.................................................................................80
Quick VPN.........................................................................81
Important Information .............................................................82
Quick VPN Server Setup Instructions ..................................83
iOS Devices ...................................................................................85
Mac OS X........................................................................................89
Windows 7.....................................................................................92
Windows 8.1/8.............................................................................96
Windows 10............................................................................... 102
Android ....................................................................................... 105
Connect a Wireless Client to your Router ....................109
WPS Button................................................................................ 109
Windows® 10............................................................................. 110
Windows® 8................................................................................ 112
WPA/WPA2 ......................................................................... 112
Windows® 7................................................................................ 114
WPA/WPA2 ......................................................................... 114
WPS....................................................................................... 117
Windows Vista®......................................................................... 121
WPA/WPA2 ......................................................................... 122
Troubleshooting............................................................124
Wireless Basics...............................................................128
What is Wireless?...................................................................... 129
Tips................................................................................................ 131
Wireless Modes......................................................................... 132
Networking Basics.........................................................133
Check your IP address............................................................ 133
Statically Assign an IP address............................................ 134
Wireless Security ......................................................... 135
What is WPA? ................................................................ 135
Technical Specications................................................136
Wall Mounting ...............................................................137
Regulatory Statements .................................................138

1D-Link DIR-878 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-878 will cause damage and void the warranty
for this product.
If any of the above items are missing or damaged, please contact your local reseller.
DIR-878
Ethernet Cable
Power Adapter
Quick Installation Card

2D-Link DIR-878 User Manual
Section 1 - Product Overview
Network Requirements
• An Ethernet-based cable or DSL modem
• IEEE 802.11ac/n/g/b/a wireless clients
• 10/100/1000 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 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.
Wi-Fi App Requirements
• iPhone®/iPad®, Android™, or Windows smartphone or tablet.
(Please refer to the mobile app's store page to check whether your
device is compatible)
System Requirements

3D-Link DIR-878 User Manual
Section 1 - Product Overview
Introduction
The D-Link DIR-878 AC1900 MU-MIMO Wi-Fi Gigabit Router shares your Internet connection over a blazing-fast Gigabit Wireless
AC connection of up to 1900 Mbps (Up to 1300 Mbps 5 GHz Wireless AC and up to 600 Mbps 2.4 GHz Wireless N)1, using
advanced AC beamforming technology to signicantly outperform 802.11n and other 802.11ac devices. Equipped with one
Gigabit WAN/Internet port and four Gigabit LAN ports to provide wired speeds of up to 10 times faster than standard 10/100
ports, the DIR-878 creates the best networking experience to date.
Featuring four antennas and a 3 x 3 Multiple In Multiple Out (MIMO) antenna conguration, the DIR-878 oers better
data rates, fewer dead-spots, more coverage, and higher reliability. Operating exclusively in the 5 GHz band, the DIR-878's
802.11ac wireless connections avoid the crowded 2.4 GHz band, allowing you faster speeds while still maintaining backwards
compatibility with older 802.11n/g/b devices. The DIR-878 prepares your home to become a Connected Home by bringing Wi-
Fi to places your old signal can’t reach. A stronger Wi-Fi signal means you can install more wireless surveillance cameras, baby
monitors, sensors, and alarms in the places where you need them.
The DIR-878's Smart Connect Technology makes connecting to wireless networks easy by eliminating the confusion of multiple
networks. Ever since the introduction of 5 GHz multi-band wireless technology, users have had to guess whether the 5 GHz
or 2.4 GHz band network would provide them with better range and speed. Smart Connect simplies this by only presenting
a single wireless network for you to connect to. Behind the scenes, when a connection is initiated, the DIR-878's advanced
algorithms determine the best band for your device to connect to, automatically distributing devices to the optimal band,
thereby ensuring a faster, more reliable, and hassle-free experience for all of your users and devices.
This router is equipped with D-Link's Quick VPN technology. Using Quick VPN allows you to securely connect your computer
or mobile device to places with free, untrusted Wi-Fi hotspots by encrypting and relaying your connection through your home
Internet connection. This extra 'hop' reduces the chances of hackers stealing your information, such as logins, passwords, and
credit card numbers. When traveling, Quick VPN lets you watch sports and use video streaming services without experiencing
blackouts or ltering. You can surf the whole Internet unltered and unblocked, just as you would at home.

4D-Link DIR-878 User Manual
Section 1 - Product Overview
The DIR-878 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.
The DIR-878 AC1900 MU-MIMO Wi-Fi Gigabit Router provides incredible speeds, smart antenna technology, fast ports, cloud
features, and terric security features. It also features an innovative design and easy installation options.
1 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.
Introduction (continued)

5D-Link DIR-878 User Manual
Section 1 - Product Overview
• Superior Wireless Networking - The DIR-878 provides Gigabit wireless speeds of up to a combined 1900 Mbps
(1300 Mbps 802.11ac 5 GHz, plus 600 Mbps 802.11n 2.4 GHz)1. This capability rivals wired connections, allowing
users to participate in real-time activities online, such as HD video communication, online gaming, and use
mobile devices from anywhere in your home while still oering full 802.11n/g/b backward compatibility.
• Extreme Wired LAN and WAN Networking - With four 10/100/1000 Gigabit Ethernet LAN ports, and a
10/100/1000 Gigabit Ethernet WAN port, the DIR-878 has an enormous amount of bandwidth to take full
advantage of the highest speed broadband connections available.
IPv6 Support - The DIR-878 fully supports IPv6 and includes support for a variety of IPv6 connection types
including: SLAAC/DHCPv6, 6rd, Static IPv6, IPv6 PPPoE, and local connectivity.
• Smart Connect - Creates a 'single' wireless network for your devices to connect to. Behind the scenes, the
DIR-878 automatically determines whether to connect a device to the 2.4 or 5 GHz band, thereby providing the
best speed and range for each device and optimally distributing devices to each network.
• Advanced Firewall Features - The web-based user interface displays a number of advanced network
management features. Easily apply content ltering based on the URL and/or domain name. Schedule these
lters to be active on certain days or for a duration of hours or minutes.
• Secure Multiple/Concurrent Sessions - The DIR-878 can pass through VPN sessions. It supports multiple
and concurrent IPSec and PPTP sessions, so users behind the DIR-878 can access corporate networks through
encrypted channels.
• User-friendly Setup Wizard - Through its easy-to-use web-based user interface or D-Link Wi-Fi App, the
DIR-878 lets you quickly congure and secure your router to your specic settings in minutes.
1 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

6D-Link DIR-878 User Manual
Section 1 - Product Overview
Hardware Overview
LED Indicators
1 Power LED A solid light indicates a proper connection to the power supply. The light will be solid orange during boot up.
2 Internet LED A solid light indicates a connection on the Internet port. If the LED is orange, the router cannot connect to the
Internet.
3 Wireless (2.4 GHz LED) A solid light indicates that the 2.4 GHz wireless band is enabled.
4 Wireless (5 GHz LED) A solid light indicates that the 5 GHz wireless band is enabled.
3 421

7D-Link DIR-878 User Manual
Section 1 - Product Overview
Hardware Overview
Back Panel
1 Gigabit LAN Ports (1- 4) Connect Ethernet devices such as computers, switches, storage (NAS) devices, and game consoles.
2Gigabit WAN Port Using an Ethernet cable, connect your broadband modem to this port.
3 Reset Button Insert a paperclip in the hole, wait for 10 seconds, and release to reset the router to default settings.
4 WPS Button Press to start the WPS process and automatically create a secure connection to a WPS client.
5 Wi-Fi Button Press this button turn o or turn on the wireless networks.
6 Power Connector Connector for the supplied power adapter.
7 Power Button Press the power button to power the device on or o.
3 4 5 6 721

8D-Link DIR-878 User Manual
Section 3 - Installation
Before you Begin
• Placement of the router is very important. Do not place the router in an enclosed area such as a closet, cabinet,
attic, or garage.
• Congure the router with the computer that was last connected directly to your Internet connection. Verify that it
is connected to the Internet before connecting additional devices.
• If your ISP provided you with a modem/router combo, you will need to set it to“bridge”mode so the router can
work properly. Please contact your ISP or refer to the user manual for your modem/router device.
• 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 Internet Service
Provider (ISP) to change connection types (USB to Ethernet).
• If connecting to a DSL modem, make sure to have your DSL service information provided by your Internet Service
Provider handy. This information is likely to include your DSL account's Username and Password. Your ISP may also
supply you with additional WAN conguration settings which might be necessary to establish a connection.
• If you are connecting a considerable amount of networking equipment, it may be a good idea to take the time to
label each cable or take a picture of your existing setup before making any changes.
• If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software such as
WinPoET, BroadJump, or EnterNet 300 from your computer or you will not be able to connect to the Internet.
This section will walk you through the installation of the DIR-878.
Installation

9D-Link DIR-878 User Manual
Section 3 - 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 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 (0.5 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 is not in use.

10D-Link DIR-878 User Manual
Section 3 - Installation
2. Position your DIR-878 near your Internet-connected modem. Place it in an open area for better wireless coverage.
1. The DIR-878 is designed to give you the fastest, most stable network connection possible. In order to maximize
performance, fully extend the antennas into a 105 degree angle to provide optimal wireless coverage. Keep the router
in an open area for better wireless coverage.
3. Turn o and unplug the power and Ethernet cable to your cable or DSL broadband modem. This is required. In some
cases, you may need to turn it o for up to ve minutes.
Modem
Modem
Hardware Setup
105°
DIR-878
DIR-878

11D-Link DIR-878 User Manual
Section 3 - Installation
DIR-878
DIR-878
DIR-878
5. Turn on or plug your modem back in and wait approximately one minute before proceeding onward.
6. Connect the supplied power adapter to the router and a power outlet, press the power button, and wait approximately
one minute until the LED indicator on the front of the device changes from orange to solid white.
Modem
4. Use the included Ethernet cable to connect your modem to the yellow port labeled INTERNET on the router.
Modem
Modem

12D-Link DIR-878 User Manual
Section 3 - Installation
If you are conguring the DIR-878 from a PC with a wired Ethernet connection, plug one end of an Ethernet cable
into the port labeled 1 on the back of the router, and the other end into the Ethernet port on your computer.
DIR-878 Modem
7. If you are conguring the DIR-878 wirelessly from a PC, connect to the Wi-Fi network printed on the label attached to
the bottom of your router.
Modem
DIR-878
8. If you are connecting to a broadband service that uses a dynamic connection (not PPPoE), you may be online already.
Try opening a web browser and connecting to a website. If the website does not load, proceed to Completing Setup
on page 13.

13D-Link DIR-878 User Manual
Section 3 - Installation
Completing Setup
There are several dierent ways you can congure your router to connect to the Internet and connect to your clients:
• D-Link Wi-Fi App - Use your Android device, iPhone, or iPad to congure your router.
Refer to D-Link Wi-Fi App on page 14.
• D-Link Setup Wizard - This wizard will launch when you log into the router for the rst time.
Refer to Setup Wizard on page 16.
• Manual Setup - Log in to the router and manually congure your router.
Refer to Conguration on page 21.

14D-Link DIR-878 User Manual
Section 2 - Installation
D-Link Wi-Fi App
The D-Link Wi-Fi App allows you to install and congure your DIR-878 AC1900 MU-MIMO Wi-Fi Gigabit Router from your mobile
device.
Note: The screenshots may be dierent depending on your mobile device’s OS version. The following steps show the iOS interface
of the D-Link Wi-Fi app. If you are using an Android™ device, the appearance may be dierent from that of the screenshots, but the
process is the same.
Step 1
Search for the free D-Link Wi-Fi App on the Apple App Store or Google Play
and install. You can also scan the QR code on the right, which will take you to
the respective D-Link Wi-Fi app store page directly.
Step 2
Launch the D-Link Wi-Fi App from the Home screen of your device.
Step 3
Click on the Install New Device button at the middle of the screen (or click on
the Menu button on the top left corner of the app to do the same).
D-Link Wi-Fi

15D-Link DIR-878 User Manual
Section 2 - Installation
D-Link Wi-Fi App (continued)
Step 5
Slide the product options to Router and select DIR-878 from the list of
available devices. Click Next to continue.
Step 6
You will now be guided through a step-by-step process for setting up your
device. Simply follow the on-screen instructions to complete the installation
and DIR-878 conguration process.
Step 4
Click Yes if you have the setup QR code with you to scan the QR code and
proceed to step 6. If not, click No and proceed to step 5.

16D-Link DIR-878 User Manual
Section 3 - Installation
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 wait while your router detects your Internet connection type. If the router
detects your Internet connection, you may need to enter your ISP information
such as username and password.
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.