Zentyal 2.2 can't login

[AkustikProjekt]

Hello from austria,

We have a Server running at Zentyal 2.2. Since a few days i can't login at the lock screen on the server. I enter the correct User and Password, because with this i can login at the web interface.

Thanks a lot.

[christian]

Still you should be able to connect from another device on the "internal" network using browser (https://your.zentyal.server). did you try this already?

[AkustikProjekt]

I can connect from another device at https://ip-of-server, but i can't login at the machine.