CIS clocking my internet connection?

Hi,

I am setting up a freshly installed window 7 PC +CIS (Antivirus/Firewall).
Before Installation I had internet connection - now with CIS on I get no connection anymore.
I have two PC connected - only one with access. Both with different IP.
Tried to build a local network - fails too as they blocked PC does not see the other

Deactivated windows firewall. no effect.

Where and what should I check to get it working again?

Gecko

Try running Diagnostics (that is under More) and see that it reports and if it can fix it or not.

Did you make any changes to the default settings? See if you blocked svchost.exe in Network Security Policy → Application Rules. Does rebooting help?