I'm having the same problem with that screen. At my company, I was told I didn't need security, so I tried with port 80. It takes centuries and I get an error saying: the server does not respond, check configuration.
When trying with security and port 443, it quickly says you may need a secure connection or account is inactive.
I don't have a clue about certificates, but I can enter the owa webpage with microb without problems.
How can I fix this?
Thanks a lot for your help