What is the Logout window that pops up after I login?
This window has been set-up to properly close your session when you choose to leave. When you click on the Logout link Network Login disconnects you from its permanent VLAN and reverts your port back to the temporary VLAN. This ensures that any subsequent connections from that port are by authenticated users. Although Network Login will reset your port if you disconnect without logging out first (by turning off your computer or pulling the network cable from the wall), this method is considered more reliable.