NiceLabel Control Center performs poorly and you experience slow behavior

Problem

When many users heavily use Control Center simultaneously, you may experience contention, poor performance, and deadlocks. The requests stop responding (or "hang") or take a very long time to execute.

You receive the following messages in the System event log:

A process serving application pool 'EPMAppPool' exceeded time limits during shut down. The process id was ''.

You may also receive the following message:

The browser service has failed to retrieve the backup list too many times on transport \Device\NetBT_Tcpip_{EAF5B984-AFC5-4119-A704-981C6FB21466}. The backup browser is stopping.

The problem is caused by the limitation on the number of threads that Control Center can use to execute requests. If many users try to make many requests to the Control Center server at the same time, threads may have to wait for an available connection. You can increase the number of available threads/connections.

Solution

For resolution see Microsoft Knowledge Base article 821268.
 

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