@AllanB Hello, For Modem reboots issue, please try the Beta provided by @TP-Link If VR2100 still could not see TL-PA8631P as client, I found our senior is following your case via email, please reply...

@Andrsouzaaa Hello, Please make sure you login RE in the local network, not remote network, and see online upgrade option shows up. May I know the current Build Number (firmware) of your range...

@TakisM Do you mean router will lose Internet when RE is plugged in? You could try a factory reset RE and set it up as AP mode again: reset: with RE powered on, press the reset hole unitl all the led...

@CLESJ2005 Hello, May I know how do you connect 2* REs to router? If you want to use multiple REs, it is recommended to connect to no more than （<=） 2 range extenders to the router & both range...

@Tony_Keung Hello, Please check the back label of your RE, is it (EU) or (UK) version. If you have (EU) version range extender, please update below firmware and see it help with the issue?...

@Saqroh4 Hello, We have a setup video that helps to configure the range extender step by step, please give a try and feel free to let us know if works for you:...