UBPort installer 1.0 fails on Win 11 (Does not reach servers), on Mint (appimage) does not recognize device

I have recovered (flashed) the device twice now using my Win11, directly from the google site, to the 9 version required for pixel3a to start from.

However..-When trying the UBPort installer, it fails to connect to the servers, though I have disabled the defender firewall, and using only the original AV (also defender).

I took the same cable and used it twice on my Linux Mint, and it reaches the servers, but its ADB does not recognize the device, and gets into an endless loop, trying to find it.

-Any help on how to proceed will be greatly appreciated.