Run Coded Ui Test from Test Manager without active remote connection

I run my Coded Ui-Tests with Microsoft Test Manager and this works fine but I always need to have an active remote desktop connection with my machine where the tests are running. If I am not active connected through RDP my tests will fail.

But i want to run my tests without always having an "active" connection through RDP, therefore i read threads where other people had the same issue like me.

Like this one: Link

I did some things these people suggested like turn on Autologon and dont use a screensaver. But all this advices didnt help for me.

Does anyone know other tips?

Thanks in advance.