@MrM2 Hello, 

Currently RE650 V1 does not have beta for unstable, can you help confirm some details to locate the issue: 

May I know the model of your router and how about the Wi-Fi LED on RE when issue occurs? 

> Try to turn off Advanced WiFi settings router like : Band Steering or Smart Connect; WiFi optimizing etc.

> If the WiFi Led(s) goes off when issue occurs, please locate RE closer to router and change a different WiFi channel of 2.4Ghz / 5Ghz on router and see if that helps with the issue.

> If RE LEDs look normal when issue happen, please log in to Range extender's web page , turn on RE's DHCP and set up a static IP address for RE as FAQ below and see if that help with unstable issue:  https://www.tp-link.com/support/faq/2965/

Also make sure you have a stable Wi-Fi connection from the main router at RE's location.

If the issue persist, may I know does the issue particularly happens on RE's 2.4Ghz and 5Ghz, and how about your network topology, thank you.  

I've done this:

VR600 Extended via 5GHz to RE650, and the later transmit 2.4GHz to the devices.

It works better, yet I've pretty sure an update is required here, even for the VR600 V2 which runs on beta firmware.

@MrM2  Hello, 

Sorry for the delayed response.Thanks so much for sharing all the detailed info, this issue you are experiencing sounds unusual. To address the issue and try to fix it, we would like to have a specialist look into this further via email. Please check your mailbox later, and let us know if the issue is resolved. Thank you!

@Solla-topee ours have many people facing the same problem as me on the 2.4GHz network of the RE650