Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


The ConfCheckMcuAvailability stored procedure times out. Additionally, you receive Lync Event ID 32050 that resembles the following in the Pool Member logs:


This issue occurs because of a deadlock in the ConfSetMcu stored procedure. When this deadlock occurs, Focus continuously sends an AddConference request to the unallocated multipoint control unit (MCU) in the front-end pool. However, the MCU rejects the request based on its current state.


To resolve this issue, install the July 2015 cumulative update 5.0.8308.920 for Lync Server 2013 (Front End Server and Edge Server).

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!