The EventQueue is full and warnings appear in the Altiris Logs: Unexpected failure in client dispatcher. It will attempt to restart in 1 minute.
"Unexpected failure in client dispatcher. It will attempt to restart in 1 minute.
( Extra Details: Type=System.NotSupportedException Src=mscorlib )","Altiris.NS.ClientMessaging.EventQueueDispatcher.DispatchLoop","AeXSvc
The Client Message Dispatcher worked thread pool is limited to 64 threads in total.
1. Make a backup of the C:\ProgramData\Symantec\SMP\Settings\CoreSettings.config file.
2. Edit the CoreSettings.config file and set the following settings to these or lower values:
<customSetting key="MaxConcurrentPriorityMsgsThreadPoolSize" type="local" value="10" />
<customSetting key="MaxConcurrentFastMsgsThreadPoolSize" type="local" value="30" />
3. Restart the Altiris Service.
Symantec Management Platfrom 7.1 Sp2