Today I bought an AX1500 Wi-Fi extender (RE505X) to replace my previous extender.

Installing went flawlessly and I can now connect via Wi-Fi to it, however when plugging the Ethernet cable from my computer into the extender, nothing happens.

My computer can't connect to internet, doesn't seem to detect the repeater.

I tried turning both off and on again, twice, I tried updating the Extender software via the app, nothing worked.

Now I know the Extender is connected to my box as I can use it on my smartphone, I know my computer's Ethernet cable and plug are fine as they worked just two days ago.

Does anyone have any insight on what to do to solve that problem ?

Cause buying something and finding the ONE thing I want it to do doesn't work is kinda infuriating.