D-Link DIR-842 User manual

User Manual
DIR-842
AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh Gigabit Route
December 2021

DIR-842 AC1200 Wave 2 MU-MIMO Wi-Fi EasyMesh 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..............................................................
Product Appearance.........................................................13
Upper Panel..............................................................13
Back and Bottom Panels...................................................15
Delivery Package...........................................................17
Chapter 3. Installation and Connection.........................1
Before You Begin...........................................................1
Connecting to PC...........................................................19
PC with Ethernet Adapter.................................................19
Obtaining P Address Automatically (OS Windows 7)........................19
Obtaining P Address Automatically (OS Windows 10).......................24
PC with Wi-Fi Adapter....................................................28
Obtaining P Address Automatically and Connecting to Wireless Network
(OS Windows 7)...........................................................28
Obtaining P Address Automatically and Connecting to Wireless Network
(OS Windows 10)..........................................................31
Connecting to Web-based Interface..........................................34
Web-based Interface Structure..............................................36
Summary Page.............................................................36
Home Page................................................................38
Menu Sections............................................................39
Notifications............................................................40
Chapter 4. Configuring via Web-based Interface.................41
Initial Configuration Wizard...............................................41
Selecting Operation Mode.................................................43
Router.................................................................43
Access Point or Repeater...............................................44
Mesh Network Main Device (Controller)..................................46
Mesh Network Su ordinate Device (Agent)................................48
Changing LAN Pv4 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 PTV/Vo P......................................61
Changing Web-based nterface Password....................................63
Connection of Multimedia Devices...........................................65
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Statistics.................................................................6
Network Statistics.......................................................68
DHCP.....................................................................69
Routing..................................................................70
Clients and Sessions.....................................................72
Port Statistics..........................................................73
Multicast Groups.........................................................74
Psec Statistics.........................................................75
Connections Setup..........................................................76
WAN......................................................................76
Creating Dynamic IPv4 or Static IPv4 WAN Connection....................78
Creating Dynamic IPv6 or Static IPv6 WAN Connection....................81
Creating PPPoE WAN Connection..........................................84
Creating PPTP, L2TP, or L2TP over IPsec WAN Connection.................89
Creating PPPoE IPv6 or PPPoE Dual Stack WAN Connection.................94
LAN.....................................................................100
IPv4..................................................................100
IPv6..................................................................105
WAN Failover............................................................109
Wi-Fi.....................................................................112
Basic Settings..........................................................112
Client Management.......................................................122
WPS.....................................................................123
Using WPS Function via We - ased Interface............................125
Using WPS Function without We - ased Interface........................126
WMM.....................................................................127
Client..................................................................130
Client Shaping..........................................................132
Additional..............................................................134
MAC Filter..............................................................138
EasyMesh................................................................141
Connecting Su ordinate Devices with Ethernet Ca le....................142
Connecting Su ordinate Devices with Hardware Button...................142
Connecting Su ordinate Devices via We - ased Interface................143
Advanced..................................................................144
VLAN....................................................................145
DNS.....................................................................148
DDNS....................................................................150
Ports Settings..........................................................152
Redirect................................................................155
Routing.................................................................156
TR-069 Client...........................................................158
UPnP GD................................................................160
GMP/MLD................................................................161
ALG/Passthrough.........................................................163
Psec...................................................................165
Firewall..................................................................174
P Filter...............................................................174
Virtual Servers.........................................................180
DMZ.....................................................................184
MAC Filter..............................................................186
URL Filter..............................................................188
AdBlock.................................................................191
Remote Access...........................................................192
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System....................................................................195
Configuration...........................................................196
Firmware Update.........................................................198
Local Update..........................................................200
Remote Update.........................................................201
Schedule................................................................202
Log.....................................................................206
Ping....................................................................209
Traceroute..............................................................211
Telnet/SSH..............................................................213
System Time.............................................................214
Auto Provision..........................................................217
Yandex.DNS................................................................219
Settings................................................................219
Devices and Rules.......................................................221
SkyDNS....................................................................223
Settings................................................................224
Devices and Rules.......................................................226
Chapter 5. Operation Guidelines...............................22
Safety Rules and Conditions...............................................22
Wireless Installation Considerations......................................229
Chapter 6. Abbreviations and Acronyms.........................230
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Introduction
CHAP ER 1. IN RODUC ION
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 Installation
Guide” A reference to a document.
Change A name of a menu menu item control (field checkbox drop-down
list button etc.).
192.16 .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 web-
based interface.
Chapter 4 describes all pages of the web-based interface in detail.
Chapter 5 includes safety instructions and tips for networking.
Chapter introduces abbreviations and acronyms most commonly used in User Manuals for
D-Link customer premises equipment.
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Overview
CHAP ER 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.
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.
The EasyMesh function is D-Link implementation of mesh networks designed to quickly connect
several2 devices into one transport network for example when it's required to provide high-quality
Wi-Fi coverage without dead zones in living units of complicated planning or it's needed to create a
large temporary Wi-Fi network for an outdoor event.
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.
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.
The SSH protocol support provides more secure remote configuration and management of the
router due to encryption of all transmitted traffic including passwords.
1 Up to 300Mbps for 2.4GHz and up to 867Mbps for 5GHz.
2 Up to 6 devices.
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In addition the router supports IPsec and allows to create secure VPN tunnels. Support of the
IKEv2 protocol allows to provide simplified message exchange and use asymmetric authentication
engine upon configuration of an IPsec tunnel.
Built-in Yandex.DNS service protects against malicious and fraudulent web sites and helps to block
access to adult content on children's devices.
The router also supports the SkyDNS web content filtering service which provides more settings
and opportunities for safer Internet experience for home users of all ages and for professional
activities of corporate users.
Now the schedules are also implemented; they can be applied to the rules and settings of the
firewall and used to reboot the router at the specified time or every specified time period and to
enable/disable the wireless network and the Wi-Fi filter.
The new ad blocking function effectively blocks advertisements which appear during web surfing.
You can configure the settings of the wireless router DIR-842 via the user-friendly web-based
interface (the interface is available in two languages – in Russian and in English).
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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Overview
Specifications*
Hardware
Processor ·RTL8197FH-VG (1GHz)
RAM ·128MB, DDR2, built in processor
Flash ·128MB, S I NAND
Interfaces ·10/100/1000BASE-T WAN port
·4 10/100/1000BASE-T LAN ports
LEDs ·ower
·Internet
·4 LAN LEDs
·WLAN 2.4G
·WLAN 5G
·W S
Buttons ·OWER button to power on/power off
·WIFI button to enable/disable wireless network
·W S button to connect mesh network devices and set up wireless connection
·RESET button to restore factory default settings
Antenna ·Four external non-detachable antennas (5dBi gain)
MIMO ·2 x 2, MU-MIMO
Power connector ·ower input connector (DC)
Software
WAN connection types ·oE
·I v6 oE
·oE Dual Stack
·Static I v4 / Dynamic I v4
·Static I v6 / Dynamic I v6
·oE + Static I ( oE Dual Access)
·oE + Dynamic I ( oE Dual Access)
·T /L2T + Static I
·T /L2T + Dynamic I
Network functions ·DHC server/relay
·Advanced configuration of built-in DHC server
·Stateful/Stateless mode for I v6 address assignment, I v6 prefix delegation
·Automatic obtainment of LAN I address (for access point/repeater/client
modes)
·DNS relay
·Dynamic DNS
·Static I v4/I v6 routing
·IGM /MLD roxy
·RI
·Support of U n IGD
·Support of VLAN
·WAN ping respond
·Support of SI ALG
·Support of RTS
·WAN failover
·Autonegotiation of speed, duplex mode, and flow control / Manual speed and
duplex mode setup for each Ethernet port
* 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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Overview
Software
Firewall functions ·Network Address Translation (NAT)
·Stateful acket Inspection (S I)
·I v4/I v6 filter
·MAC filter
·URL filter
·Ad blocking function
·DMZ
·Virtual servers
·Built-in Yandex.DNS web content filtering service
·Built-in SkyDNS web content filtering service
VPN ·I sec/ T /L2T / oE pass-through
·T /L2T tunnels
·L2T over I sec
·I sec tunnels
Transport/Tunnel mode
IKEv1/IKEv2 support
DES encryption
NAT Traversal
Support of D D (Keep-alive for V N tunnels)
Management and monitoring ·Local and remote access to settings through SSH/TELNET/WEB
(HTT /HTT S)
·Bilingual web-based interface for configuration and management
(Russian/English)
·Support of D-Link Assistant application for Android and i hone 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 NT server and manual
time/date setup
·ing utility
·Traceroute utility
·TR-069 client
·Schedules for filters rules, automatic reboot, and enabling/disabling wireless
network
·Automatic upload of configuration file from IS 's server (Auto rovision)
Wireless Module Parameters
Standards ·IEEE 802.11ac Wave 2
·IEEE 802.11a/b/g/n
·IEEE 802.11k/v
·IEEE 802.11w
Frequency range
The frequency range depends upon the
radio frequency regulations applied in your
country
·2400 ~ 2483.5MHz
·5150 ~ 5350MHz
·5650 ~ 5850MHz
Wireless connection security ·WE
·W A/W A2 ( ersonal/Enterprise)
·W A3 ( ersonal)
·МАС filter
·W S ( BC/ IN)
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Wireless Module Parameters
Advanced functions ·EasyMesh function
·Support of client mode
·WMM (Wi-Fi QoS)
·Information on connected Wi-Fi clients
·Advanced settings
·Guest Wi-Fi / support of MBSSID
·Rate limitation for wireless network/separate MAC addresses
·eriodic scan of channels, automatic switch to least loaded channel
·Support of 5GHz TX Beamforming
·Autonegotiation of channel bandwidth in accordance with environment
conditions (20/40 Coexistence)
·Support of STBC
Wireless connection rate ·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 (MCS0–MCS15)
·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)
ransmitter output power
The maximum value of the transmitter
output power depends upon the radio
frequency regulations applied in your
country
·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
·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
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Wireless Module Parameters
Receiver sensitivity ·802.11a (typical at ER < 10% (1000-byte DUs) 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 ER = 8% (1000-byte DUs) at room temperature 25 °C)
-80dBm at 1Mbps
-80dBm at 2Mbps
-76dBm at 5.5Mbps
-76dBm at 11Mbps
·802.11g (typical at ER < 10% (1000-byte DUs) 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 ER = 10% (1000-byte DUs) 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
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
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Wireless Module Parameters
·802.11ac (typical at ER = 10% (1000-byte DUs) 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
Modulation schemes ·802.11a: B SK, Q SK, 16QAM, 64QAM with OFDM
·802.11b: DQ SK, DB SK, DSSS, CCK
·802.11g: B SK, Q SK, 16QAM, 64QAM with OFDM
·802.11n: B SK, Q SK, 16QAM, 64QAM with OFDM
·802.11ac: B SK, Q SK, 16QAM, 64QAM, up to 256QAM with OFDM
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 ·Output: 12V DC, 1A
emperature ·Operating: from 0 to 40 °C
·Storage: from -20 to 65 °C
Humidity ·Operating: from 10% to 90% (non-condensing)
·Storage: from 5% to 95% (non-condensing)
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Product Appearance
Upper Panel
Figure 1. Upper panel view.
LED Mode Description
Power
Solid green The router is powered on.
No light The router is powered off.
Internet
Solid green The cable is connected to the port.
Blin ing green Data transfer through the WAN port.
No light The WAN cable is not connected.
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LED Mode Description
LAN 1-4
Solid green A device (computer) is connected to the relevant port
the connection is on.
Blin ing green
Data transfer through the relevant LAN port.
When the router is being loaded the LEDs are blinking
one at a time.
No light The cable is not connected to the relevant port.
WLAN 2.4G
WLAN 5G
Solid green The router's WLAN of the relevant band is on.
Blin ing green Data transfer through the Wi-Fi network of the relevant
band.
No light The router's WLAN of the relevant band is off.
WPS
Fast blin ing green The device is in the emergency mode. Restore the
factory default settings via the hardware RESET button.
Slow blin ing green
•Attempting to connect mesh network devices or
add a wireless device via the WPS function or
•the firmware is being updated.
No light The WPS function is not in use.
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Back and Bottom Panels
Figure 2. Bac 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 connect mesh network devices or set up wireless
connection (the WPS function).
To connect mesh network devices: with the device turned on and
factory default settings or with the EasyMesh function enabled in the
router settings push the button hold it for 2 seconds and release.
To use the WPS function: push the button hold it for 2 seconds and
release.
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.
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Also the power connector is located on the back panel of the router.
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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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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Installation and Connection
CHAP ER 3. INS ALLA ION AND CONNEC ION
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 web-
based 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 Bro ser
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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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).
Obtaining IP Address Automatically (OS indows 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.
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3. In the menu located on the left part of the window select the Change adapter settings
line.
Figure 4. The Net ork and Sharing Center window.
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