T48S doenst restart after set changes

[Skamqi]

Hello there,

our T48S gots auto provised by our askozia.
After change something in our askozia, the phone will shut down for restart, but doesnt come online again.
So the restart doesnt work correct.

The clue is, when we set the telephone to an other place in the office, with new power supplie and a new network cable, the phone works great!

What can be the problem here?

Kind Regards,

Skamqi