TP-Link TL-MR3420 User manual

1910011969 REV4.0.0
User Guide
3G/4G Wireless N Router
TL-MR3420

Contents
About This Guide.........................................................................................................1
Chapter 1. Get to Know About You Router . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1. 1. Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1. 2. Panel Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 2. Connect the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2. 1. Position Your Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. 2. Connect Your Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3. Set Up Internet Connection via Quick Setup Wizard . . . . . 12
3. 1. Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3. 2. Configure the Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 4. Configure the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4. 1. Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4. 2. Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4. 3. Wireless . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4. 4. DHCP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4. 5. Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4. 6. Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4. 7. Parental Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4. 8. Access Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
4. 9. Advanced Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4. 10. Bandwidth Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4. 11. IP & MAC Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
4. 12. Dynamic DNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4. 13. IPv6 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4. 14. System Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
FAQ ................................................................................................................................92

1
About This Guide
This guide is a complementation of Quick Installation Guide. The Quick Installation Guide
instructs you on quick Internet setup, and this guide provides details of each function
and shows you the way to configure these functions appropriate to your needs.
When using this guide, please notice that features of the router may vary slightly
depending on the model and software version you have, and on your location, language,
and Internet service provider. All screenshots, images, parameters and descriptions
documented in this guide are used for demonstration only.
1. 1. 1. Conventions
In this guide the following conventions are used:
Convention Description
Underline Hyperlinks are underlined. You can click to redirect to a website or a specific
section.
Teal Contents to be emphasized and texts on the web page are in teal, including the
menus, items, buttons, etc.
>
The menu structures to show the path to load the corresponding page.
For example, Advanced > Wireless > MAC Filtering means the MAC Filtering
function page is under the Wireless menu that is located in the Advanced tab.
Note: Ignoring this type of note might result in a malfunction or damage to the device.
Tips: Indicates important information that helps you make better use of your device.
1. 1. 2. More Info
The latest software, management app and utility can be found at Download Center at
www.tp-link.com/support.
The Quick Installation Guide can be found where you find this guide or inside the
package of the router.
Specifications can be found on the product page at http://www.tp-link.com.
A Technical Support Forum is provided for you to discuss our products at
http://forum.tp-link.com.
Our Technical Support contact information can be found at the Contact Technical
Support page at www.tp-link.com/support.

Chapter 1
Get to Know About You
Router
This chapter introduces what the router can do and shows its appearance.
This chapter contains the following sections:
• Product Overview
• Panel Layout

3
Chapter 1 Get to Know About You Router
1. 1. Product Overview
The TP-LINK router is designed to fully meet the need of Small Office/Home Office
(SOHO) networks and the users demanding higher networking performance. The
powerful antennas ensure continuous Wi-Fi signal to all your devices while boosting
widespread coverage throughout your home, and the built-in Ethernet ports supply
high-speed connection to your wired devices.
Moreover, it is simple and convenient to set up and use the TP-LINK router due to its
intuitive web interface.
1. 2. Panel Layout
1. 2. 1. Top View
The router’s LEDs (view from left to right) are located on the top. You can check the
router’s working status by following the LED Explanation table.
LED Explanation
Name Status Indication
(Power)
On Power is on.
Off Power is off.

4
Chapter 1 Get to Know About You Router
LED Explanation
Name Status Indication
(System)
On The Router is initializing.
Flashing The Router is working normally.
Off The Router has a system error.
( Wi-Fi)
Flashing The wireless function is enabled.
Off The wireless function is disabled.
(LAN 1~4)
On A device is connected to the corresponding port but no data
are being transferred.
Flashing Data being transffered via the corresponding port.
Off No device is connected to the corresponding port.
( Internet)
Blue The Internet port is connected and Internet is available.
Off The Internet port is not connected.
Red The Internet port is connected, but Internet is unavailable.
(USB)
On The USB port is connected but no data are being transferred.
Flashing Data are being transferred via this port.
Off The USB port is not connected to any device.
(WPS)
On A device is connected to the router wirelessly successfully
using WPS.
Quick Flashing A device fails to connect to the router using WPS.
Slow Flashing A device is connecting to the router using WPS. This process
lasts 2 minutes.
Off

5
Chapter 1 Get to Know About You Router
1. 2. 2. The Back Panel
The following parts (view from left to right) are located on the rear panel.
Item Description
Power Socket For connecting the power adapter. Please use the power adapter provided with
this router.
Power On/Off Button Press to turn on/off the router with router powered on.
Internet Port For connecting to the DSL/Cable modem, or Ethernet.
Ethernet Ports (4,3,2,1) For connecting the router to your PC or other Ethernet network devices.
Wi-Fi Button Press to turn on/off the Wi-Fi of the router.
WPS/RESET Button
To use the WPS function, press this button, and immediately press the WPS
button on your client device.
To reset the router to its factory default settings, press this button for about 5
seconds.
1. 2. 3. The Side Panel

6
Chapter 1 Get to Know About You Router
Item Description
USB Port For pluging in a 3G/4G USB modem.

Chapter 2
Connect the Hardware
This chapter contains the following sections:
• Position Your Router
• Connect Your Router

9
Chapter 2 Connect the Hardware
2. 1. Position Your Router
• The product should not be located where it will be exposed to moisture or excessive
heat.
• Place the router in a location where it can be connected to multiple devices as well as
to a power source.
• Make sure the cables and power cord are safely placed out of the way so they do not
create a tripping hazard.
• The router can be placed on a shelf or desktop.
• Keep the router away from devices with strong electromagnetic interference, such as
Bluetooth devices, cordless phones and microwaves.
2. 2. Connect Your Router
1. Follow Method 1 to share the Internet through a 3G/4G USB modem or Method 2
to share the Internet through a DSL/Cable/Satellite modem or an Ethernet cable
connection.
• Method 1: Plug and Play via 3G/4G USB Modem
USB
Power
Adapter
Router
3G/4G USB Modem
2
POWER ON/OFF WAN 1 2 3 4 WPS/
RESET
WIFI
1
1 ) Press to turn on the router.
2 ) Plug in a 3G/4G USB modem with a SIM/UIM card.
3 ) Wait 1-2 minutes and then confirm that the following LEDs are on and solid.

10
Chapter 2 Connect the Hardware
Note:
• If the Internet LED ( ) is off or is red, please refer to Configure Your 3G/4G Connection shown below.
• If the Wi-Fi LED ( ) is off, press the Wi-Fi button on the rear panel for 3 seconds and then check the LED again.
• You can find the latest modem compatibility list in our website: http://www.tp-link.com/en/comp-list.html.
• Configure Your 3G/4G Connection
1 ) Connect your device to the router’s LAN (1 - 4) port via an Ethernet cable or use
the default SSID and password printed on the label at the bottom of the router
to join the wireless network.
2 ) Launch a web browser and enter http://www.tp-link.net in the address bar. Use
admin for both username and password, and then click Login.
Note: If the login window does not appear, please refer to FAQ > Q1.
3 ) Select your Time zone and click Next.
4 ) Select 3G/4G Only and click Next.
5 ) Select your Region and Mobile ISP, and then click Next.
Note: If your ISP is not listed, select the Set Dial number, APN, Username and Password manually option and
enter the 3G/4G parameters provided by your ISP (internet service provider).
6 ) Follow the step-by-step instructions of the Quick Setup to complete the
configuration.
• Method 2: Connect to DSL/Cable/Satellite Modem
1
Power
Adapter
POWER ON/OFF WAN 1 2 3 4 WPS/
RESET
WIFI
Power
Adapter
Modem
Internet
3
2
4
1 ) Power off the modem and remove the backup battery if it has one.
2 ) Connect the modem to the router’s WAN port via an Ethernet cable.
3 ) Turn on the modem and then wait about 2 minutes for it to completely restart.
4 ) Press to turn on the router.
5 ) Confirm that the following LEDs are on and solid to verify the hardware
connection is correct.

11
Chapter 2 Connect the Hardware
Power
On On
Internet
On
Wi-Fi
Note:
• If the Wi-Fi LED ( ) is off, press the Wi-Fi button on the rear panel for 3 seconds and then check the LED again.
2. Connect your computer to the router.
• Method 1: Wired
Turn off the Wi-Fi on your computer and connect the devices as shown below.
Wired
• Method 2: Wirelessly
1 ) Find the SSID (Network Name) and Wireless Password printed on the label at
the bottom of the router.
2 ) Click the network icon of your computer or go to the Wi-Fi settings of your
smart device, and then select the SSID to join the network.
Connections are available
Wireless Network Connection
Connect automatically Connect
TP-LINK_XXXX
Wi-Fi
Wi-Fi
TP-LINK_XXXX
CHOOSE A NETWORK...
Other...
< Settings
• Method 3: Use the WPS button
Wireless devices that support WPS, including Android phones, tablets, most USB
network cards, can be connected to your router through this method.
Note:
• WPS is not supported by IOS devices.
• The WPS function cannot be configured if the wireless function of the router is disabled. Also, the WPS function
will be disabled if your wireless encryption is WEP. Please make sure the wireless function is enabled and is
configured with the appropriate encryption before configuring the WPS.
1. Tab the WPS icon on the device’s screen. Here we take the Android phone for instance.
2. Within two minutes, press the WPS button on your router.

12
Chapter 2 Connect the Hardware
Close to
POWER ON/OFF WAN 1 2 3 4 WPS/
RESET
WIFI

Chapter 3
Set Up Internet Connection
via Quick Setup Wizard
This chapter introduces how to connect your router to the internet. The router is
equipped with a web-based Quick Setup wizard. It has many ISP information built
in, automates many of the steps and verifies that those steps have been successfully
completed.
It contains the following sections:
• Quick Setup
• Configure the Router

14
Chapter 3 Set Up Internet Connection via Quick Setup Wizard
3. 1. Quick Setup
The Quick Setup Wizard will guide you through the process to set up your router to
access the Internet.
1. Set up the TCP/IP Protocol in Obtain an IP address automatically mode on your
computer.
2. Visit http://tplinkwifi.net, and log in with the username and password you‘ve set for
the router. The default one is admin for both username and password.
3. Click Quick Setup on the top of the page, and follow the step-by-step instructions to
set up your router to access the Internet.
Note:
If the login window does not appear, please refer to the FAQ section.
3. 2. Configure the Router
The Quick Setup Wizard will guide you through the process to set up your router.
Follow the steps below to check or modify your Internet connection settings.
1. Go to Quick Setup, select your time zone and click Next to continue.
2. Select the Operation Mode as needed and click Next.

15
Chapter 3 Set Up Internet Connection via Quick Setup Wizard
Note:
• If you are using 3G/4G Preferred or WAN Preferred, the router would connect, disconnect or switch the
current access automatically. The Connect/Disconnect button (on 3G/4G, PPPoE, PPTP, L2TP) and some
related parameters could not be set manually.
• Only when the WAN connection is Dynamic IP, Static IP or PPPoE can the router support the switch
between 3G/4G mode and WAN mode.
3. Configure the 3G/4G Settings or WAN Connection Type according to the page(s)
shown below.
• 3G/4G Settings
Enter the parameters of your mobile data provider and click Next.
• WAN Connection Type
1 ) Select WAN Connection Type and click Next.
Note:
• If you use cable TV or fiber cable, choose Dynamic IP.
• If you are provided with more information such as IP address, Subnet Mask and Default Gateway, choose Static
IP.
• If you use DSL line and you are only provided with an account name and a password by your ISP, choose PPPoE.
• If you are not sure of your WAN Connection Type, click Auto Detect and click Next.

16
Chapter 3 Set Up Internet Connection via Quick Setup Wizard
2 ) In this case, we take dynamic IP for instance. Please select to clone the mac
address or not and click Next. For other connection types, please enter the
parameters provided by your ISP, and then click Next.
4. Either customize your Network Names (SSIDs) and Passwords or keep the default
ones, and then click Next.
5. Check the parameters you have configured and click Save.
6. Click Finish to complete the configuration. Now your computers and Wi-Fi devices
can connect to the Internet!

17
Chapter 3 Set Up Internet Connection via Quick Setup Wizard

Chapter 4
Configure the Router
This chapter presents how to configure the various features of the router working as a
Standard Wireless Router.
This chapter contains the following sections:
• Status
• Network
• Wireless
• DHCP
• Forwarding
• Security
• Parental Control
• Access Control
• Advanced Routing
• Bandwidth Control
• IP & MAC Binding
• Dynamic DNS
• System Tools

19
Chapter 4 Configure the Router
4. 1. Status
1. Visit http://tplinkwifi.net, and log in with the username and password you set for the
router.
2. Go to Advanced > Status. You can view the current status information of the router in
Standard Router Mode.