For some months now I have had a strange problem with my development machine (Windows 7 x64).
Everything works normal for hours, but then suddenly, it appears that the network stack is blocking/hanging. Nothing works, browsers hang, pings won't work, etc. This state continues for some minutes and after that, it appears to be working again. Except one thing: All network traffic constantly produces CRC errors. This persists until I reboot the machine.
Error log of Windows doesn't show anything special.
I have already tried to deactivate all other network adapters then my physical network card (adapters from VirtualBox etc).
I have also tried to deactivate my network card and use a wireless LAN USB stick. Didn't change anything.
Any idea how i could find the problem? Or even fix it?