Microsoft KB Archive Search

Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

  1. Home
  2. Elevated CPU usage for Rtcsrv.exe process on a Lync Server 2010 front-end server

Elevated CPU usage for Rtcsrv.exe process on a Lync Server 2010 front-end server

View products that this article applies to.

Symptoms

On a Microsoft Lync Server 2010 front-end server, client users may experience the following symptoms:
  • New users cannot sign in to the front-end server.
  • Users cannot complete instant message conversations.
  • Users cannot join meetings that are hosted on the front-end server.
Additionally, the Front End (FE) service (Rtcsrv.exe) uses more CPU resources than expected.

↑ Back to the top

Cause

This issue occurs because of a race condition in the rtcsrv.exe process.

↑ Back to the top

Resolution

To fix this issue, install the April, 2016 Cumulative Update 4.0.7577.728 for Lync Server 2010.

↑ Back to the top

Keywords: kbfix, kbqfe, kbsurveynew, kbexpertiseinter, kb

↑ Back to the top

Article Info
Article ID : 3155594
Revision : 1
Created on : 1/7/2017
Published on : 5/20/2016
Exists online : False
Views : 213