The dns record on your computer might still be retaining the old IP address. I currently am experiencing the same issue and I'm in the process of correcting it. In the past we were given the exact IP address to add, eliminating the potential issue with DNS. This time we were given the task to add a name (login.swgemu.com) instead of an IP address. If you type cmd in the search or run box then do ping login.swgemu.com and get "pinging login.swgemu.com [166.78.151.61]" its got the old IP stored. The new IP address should be 50.97.160.122.
Updated Fix: Type "ipconfig/flushdns" in the command promtp (cmd at the run/search box)
then do "ipconfig/registerdns". This should now make login.swgemu.com point to the current IP address 50.97.160.122 or whatever other IP address if there's multiple hit points.
