Dell Wyse p45 CA Problem

I'm trying to connect my dell wyse p45 to the server.

But when i try to do so i got the error:

I went to my dekstop pc, and connect to the local ip adress.

There i got the CA, i extracted it to .cer and renamed it to .pem

I uploaded it on my Dell Wyse P45. Along with 2 other CA of my desktop. (in other topic they adviced to do so)

But i still can't connect to the server. I attached a log files.

Can some tell me how to fix this problem?