RGS agents may stop receiving calls after you run the “Enable-CsTopology” cmdlet in Skype for Business Server 2015

Applies to: Skype for Business Server 2015

Symptoms


Assume that you enable response group service (RGS) in a Microsoft Skype for Business Server 2015 environment. When you run the Enable-CsTopology cmdlet to have the changes published, some RGS agents can’t receive toast notifications even their presence status is available.

Cause


This issue occurs because the presence watcher is reset when the Enable-CsTopology cmdlet is invoked.

Resolution


To fix this issue, install the following cumulative updates: