A deadlock was found in RtcSrv.exe that can cause Lync Server 2013 Front-end servers to stop listening for requests

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Lync Server 2013 More...Less

Symptoms

Considering one of your Microsoft Lync Server 2013 Front End servers stops responding, it might be back to usual about 3 to 5 days after you restart the RtcSrv.exe (Skype for Business Server Front-End) service in the problematic server.

Resolution

To fix this issue, install the July 2018 cumulative update 5.0.8308.1001 for Lync Server 2013, Front End Server and Edge Server.

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A deadlock was found in RtcSrv.exe that can cause Lync Server 2013 Front-end servers to stop listening for requests

Symptoms

Resolution

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