When I start my computer, I can log onto the internet just fine. Then, if I log off and try to log back on, the internet connection box just hangs on "verifying username and password". I went into task manager and it says my Network connection is "non-operational". I have tried futzing around with stopping and starting certain network services in "Component Manager" to no avail. Any ideas on how to re-logon to the internet without having to restart my computer?