Restore via Bootstick 2.3.1 - Network Problems and Solution

When i use the ISO 2.3.1 with a USB Stick (UEFI and Standard Boot) then i cant enter IP configuration manually because the pc hangs when saving manual ip.

With ISO 2.0.2 (UEFI and Standard Boot) it works. But after exchange the IP i need to manually cut network and plug it back again. Disconnect and Connect via menu doesn’t work also.

So ISO 2.3.1 has some errors i guess.