The Citrix Administrator was noticing that the Server VDAs stop at the Welcome screen.

 

Known issue - LIMITED RELEASE - Hotfix ICATS750WX64022 - For VDA Core Services 7.1/7.5 for Windows Server OS (64-bit) - English

Problem Cause

1. The svchost.exe process running on Windows Server 2008 VDAs exits unexpectedly during RDP connection attempts.

   [From ICATS750WX64022][#LA5868]

2. When establishing a Remote Desktop (RDP) connection to a VDA and then disconnecting from the RDP session, the following error message (Event ID 1048) appears in the event log:

   "The Citrix Desktop Service is re-registering with the DDC:
   "NotificationManager:NotificationServiceThread: WCF failure or rejection by broker (DDC: bruin.newer.ln)""

   [From ICATS750WX64022][#LC0251]

CTX141662 - LIMITED RELEASE - Hotfix ICATS750WX64022 - For VDA Core Services 7.1/7.5 for Windows Server OS (64-bit) - English