Not sure what CS suggested but here's few threads/tips on connection issues:
Make sure you have Proxies turned off.
Control Panel --> Internet Options --> Connections --> LAN Settings --> Untick Proxy Server
Here's some other suggestions: http://answers.ea.com/t5/Origin/How-to-Fix-Origin-Login-Unavailable/td-p/3218195
If this doesn't help, check this thread: http://answers.ea.com/t5/Origin/Origin-Client-says-quot-Online-login-is-currently-unavailable/td-p/2069735/ or this one: http://answers.ea.com/t5/Origin/Origin-Client-says-quot-Online-login-is-currently-unavailable/td-p/2069735/
If those don't help, you might be better of posting in the Origin board.
Community Manager
