Lync 2013 : High svchost.exe Handle Count on Front End/Edge Servers

Ran into some stability issues with a Lync 2013 environment recently with calls being dropped and content sharing not working. Restarting the Edge Servers, and less commonly the Front End servers, resolved the issue but only for a few days at most.

Working with MS support they identified high namespace handle count against an svchost.exe process – the process that was associated with WMI. To identify this, WMI was broken out into it’s own svchost process using the information in the following article:

Once the cause was identified, the following hotfix resolved the stability issues:

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