@WolverinDEV, There seems to be a critical error in rights, but I'm not sure... I need your advice... sometimes, at some point, users can assign themselves administrator privileges without having privileges to do so. I can't reproduce it, but it happens.
Small update: Good news, the WebClient certificate accept stuff will be gone!
I finally found a way to skip this step. This also means that the new TeaSpeakServer (1.4.4 i guess) will be ready2use with the web client out of the box!