network scan shows several routers on thet scan how do I remove them
You are going to have to be more detailed for anyone to even hazard a guess. e.g. do you recognise these routers ?
The Network Shield is gong to scan new connections, unless you check out the Network Inspector settings.
Another crucial element in the mix would be the Firewall Settings, e.g. is it set to Private, as the two shields work together in some regards.