Can’t join meeting by using Skype for Business Room System or Surface Hub devices in Skype for Business Server 2015

Applies to: Skype for Business Server 2015

Symptoms


Your end-users report that they can't join a Skype for Business meeting, especially when they join the meeting by using Microsoft Business Room System or Surface Hub devices. 

Cause


This issue occurs because all subsequent sign-in processes fail for these devices after a rare race condition occurs in Microsoft Skype for Business Server 2015 Front End service. 

Workaround


To work around this issue, restart the Skype for Business Server 2015 Front End service to have the issue lessened.