At the login screen for my webmail, I enter my username and password - and then the sign-in button just spins. It'll spin all day.
This is from work, in both Chrome and FF (latest versions). At home, using both browsers with the same plug-ins (they are synced), I have no problem.
At work the routers might cause problems. But at home I use VPN (PIA) with no problems.
Perhaps there is some intermediary URL that's being blocked by my workplace? I see 'sso.secureserver.net' when logging in - are there other sites involved? How could I determine if this is the case?