Hello @Wheezs ,

Thanks for contacting our community.

I understand your desire for a stable network connection with the TL-WR1502X, but network instability can have many causes, and we need to investigate them one by one to find the cause and provide a suitable solution. We probably cannot immediately conclude that the network instability is caused by a problem with the router or extender itself.

If possible, we would also appreciate it if you could provide more details about your case, such as your network topology.

For example: ISP modem—router )))((( client devices

(Note: — stands for wired connection,)))((( stands for wireless connection )

For unstable wireless connections:
1) Check router placement: Make sure the router is properly placed in an open area instead of inside a cabinet or shelf for optimal signal distribution.
2) Optimize Wi-Fi channels: In the web interface, go to Advanced > Wireless > Wireless Settings, and try different Wi-Fi channels to avoid nearby interference. Additionally:
   • For 2.4GHz wireless client devices, set the 2.4GHz channel width to 20MHz
   • For 5GHz wireless client devices, set the 5GHz channel width to 80MHz or 40MHz to avoid interference
3) Verify cable connections: Make sure the Ethernet cable between your main router and the TP-Link router (in AP mode) is connected properly. Consider replacing old cables with new ones.

In addition, what are the models of your main router and TP-Link range extender? Who is your ISP?