Hello and Welcome.
Svchost.exe (netsvcs) is used to launch many dll based services on your PC in one process and itself being located at C:\WINDOWS\System32\ should be the normal part of your Windows
. Some of these normal windows services use network connectivity to function properly
. Aparently one of the dll based services is "choking". To try to find out which, use a very handy
Process Explorer for detailed information.