Skype Room System v2 log in problem

Hi everone, 

We are testing new device Skype Room System v2

Version 4.0.31.0

administrative version 6

Windows version 10.0.17134.376

Device have problem with login in to skype all time trying log in but withou succces

Interesting that if I invite him to appear, however you can't join them.

From skype server see only log

 "reason=No Routable Endpoints"