RouterNT showing high CPU usage

  • Article ID: 14442
  • Rating:
  • 4 customers rated this article 4.5 out of 6
  • Updated: 25 Nov 2013

Issue

With Sophos Anti-Virus for Windows 2000+ installed, RouterNT.exe is showing high CPU utilization.

First seen in

Sophos Endpoint Security and Control 9.0

Cause

  • Large numbers of message (.msg) files have accumulated.
  • The table_router.txt file is corrupt.

What To Do

  1. In Windows services, stop the Sophos Message Router service.
  2. Open the Task Manager (Start | Run | Type: taskmgr.exe | Press return), select the 'Processes' tab and ensure the 'RouterNT.exe' process is not listed.
    If it is listed select the process and click 'End Process'.
  3. Remove any built up message files on the Remote Management System envelopes folder.  For more information on clearing the envelopes folder see article 63588.

Other reasons for high CPU utilization include:

  • The message router is constantly restarting. To check this,
    1. Open the Task Manager (Start | Run | Type: taskmgr.exe | Press return), select the 'Processes' tab and then select the 'RouterNT.exe' process.
    2. If the number in the 'PID' column is constantly changing, this indicates that the router is constantly restarting. Your router log files should indicate the cause. Contact Sophos Technical Support, and have the log file information available.
  • Enterprise Console: packet loss causing problems with RMS
  • The affinity needs to be set for the RouterNT.exe process in some cases.  See article 113093.

 
If you need more information or guidance, then please contact technical support.

Rate this article

Very poor Excellent

Comments