I got a problem with Ubuntu 20.04. I have disabled every service on the Pi 3b not needed. It used to be a wifi connected device, then I plugged it onto my new router with a cable and it was recognized and worked right on with access to everything it had, home assistant, pi-hole, portioner, etc... Then I tried to re-enable wifi connection to my newly purchased Ubiquiti udr device, using raspi-config country>ssid>password, and it stopped communicating in every way.
It does appear on my router as a connected device, but putty cannot get connected to it, nor does any interface appear when trying to connect using a browser. I've also tried using the network-config file on the sd card to input various lines onto it using DHCP or static addresses and it feels like RPI is not communicating with it in any way.
Is there perhaps a command I could add to the sd card that deletes any configured things on the device so I could add a monitor to it, etc? I only need to get all the logs and configs out of the machine as I'm also going to upgrade the 3b to a 4b.