What's the solution if my TP-Link range extender can't connect to my router properly?

Updated 07-20-2021 05:50:33 AM 368021
This Article Applies to: 


If you’ve configured the range extender step by step and LED lights are on but there is no internet or your extender is working but the connection is unstable, please try the following troubleshooting.

If you don’t know how to login to your router’s management page to check IP info, please refer to Method 1, otherwise, refer to Method 2.

Method 1

Please connect the computer to your main router with Ethernet cable or Wi-Fi,  then check the IP info of your computer, If you don’t know how to check the IP address on a computer, please refer here.


Configure the info on extender’s management page:


  1. Login into the management page of your extender.


  1. Settings > Network

Network Settings: choose ‘use the following IP address’


DHCP server: choose ‘on

IP address: 10.0.200.X

IP address pool: set a small range of the main router


Address Lease Time: 1440

Default Gateway & Primary DNS: Fill with the IPv4 DHCP Server shown in the Network Connection Details of the computer.



Method 2

First, please configure the range extender in a normal way.

Then check the DHCP configuration info on the router’s management page:

We take the TP-Link router AX1600 as an example(If your router is not TP-Link, you need to ask for help with your router’s support)

On this page, the IP address is the Router’s LAN IP

The subnet mask needs to be filled into the extender’s DHCP settings.

IP address (router’s LAN IP):                       

Subnet Mask:                                            

IP address pool: this range is set on the main router, on the extender, we need to set a smaller range than this one.

IP address pool (main router):

IP address pool (extender):       ③

All the info in red text, we need to configure on extender’s management page.

Finally, set on Range Extender

Block 1:

Choose the ‘Use the following IP address’

  • Fill with the info IP address (router’s LAN IP): 192.168.0.X                       

Subnet Mask: This subnet mask need to check on the main router (normally, the subnet mask is

  • Fill with the info Subnet Mask:                                            

Default Gateway: Fill with the router’s LAN IP

  • Fill with the info IP address (router’s LAN IP):                       

Block 2:

Enable the DHCP server. (choose one)

IP address pool: this is the range of the clients’ IP, normally we need to check on the router’s management page. (a small range of the router’s IP pool)

  • Fill with the info IP address pool (extender): (Smaller than the router’s DHCP pool)      

Address Lease time: the IP that the client got can be used for xxx minutes. (set 1440 in this case)

Default Gateway: Fill with the router’s LAN IP

  • Fill with the number: 1440 (minutes)


If it still cannot fix the problem, please contact Support for help.

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