I'm using the latest Realtek driver without disabled power-saving settings. Unfortunately, I can't check the version number right now. The old motherboard or network card was definitely broken.

It worked immediately. I had to log in again with my Microsoft password and reactivate Microsoft Office when I started it. Thats it

USB Flashback works. But it us dissappoting. Something is broken on the Mobo.

Hi, yes I have load the BIOS defaults before. 

I have found that the problem unfortunately still exists.With the standard Realtek network driver or the current driver with Energy-Efficient Ethernet switched off, I don't have any connection interruptions in Windows mode. However, as soon as I star...