We are running Unity 5.0(1.0) with CUCM 7.0.2 and Exchange 2007 SP1 in a Windows 2008 AD. We are experiencing the WMI delay. Turns on in 1-5 minutes after message is received, and turns off within 5-15 minutes after messages are read.
I saw a post somewhere that this was an Exchange 2007 issue that was resolved in Exchange 2007 SP1 Rollup4. We are making preparations to update to Exchange 2007 SP2 (which includes Rollups 1-8). Has anyone upgraded to SP2 and seen the WMI issue resolved? All other VoIP, UM, Voicemail and Email services are working as expected.