dotnet restore hangs then time out with 100000ms

Especially on W7/x64

I found the solution here: https://github.com/dotnet/cli/issues/1732.

For several people it seems to be related to network interface (VMWare, VirtualBox...). For me the following unleash the restore:

Using "procmon" I found something strange happening in the lock files in %TEMP%\NugetScratch. I deleted that folder and everything started to work again and CI builds now work perfectly.

Happy restore!