recent login issues

The past couple days I have had trouble logging in. During the handshake phase of the login it just sits there until i get the error about checking for internet connection issues. When I try again it tells me I have be disconnected from the region and then it closes the SL viewer. I already restarted my cable modem and router and still get the same errors.
Anyway to overcome this?

Thanks

UPdate,

Ok this is weird, on the same network with a different PC I can get logged in no problem but with my primary pc I cant. I even tried snowglobe and got the same error.