Yes, indeed, with a 2A adapter, the router initializes properly. I am over the first obstacle. Thanks again.

@Sunshine Wow, you must have telepathic powers. Indeed, the adapter is rated for 500mA. No indication that it is an official TP-Link adapter, either. I will try to find a matching adapter at home to...

I bought a used AX50 and am not successful setting it up. Is it broken? When I switch it on, the LEDs behave as follows: All are green for a short moment While the others are green, the Internet LED...