Somfy Tahoma Local API

Hi Everybody,
I am using openhabian 3.4.1.
I have a Tahoma Box and always had some problems with a stable use
in the binding. After talking to the support i solved one problem (refresh time from cloud
was too short - cloud blocked me). Unfortunately that was not the whole solution.
Now the bridge goes offline several times a day for about 5 minutes. Then its online again.
So i was very happy when i read that the local API can be used in the new update.
Again unfortunately it doesnt work. The Bridge doesnt go online when using the local.
the binding can find the IP, the PIN and the token itself. I checked the IP and PIN - they are
OK. I have no idea how to check the token ?

Can someone please help me ?