I have got a Unity 4.0(2) system that is voice mail only with Exchange on box. I am getting some errors in the event viewer that I am not sure of and I cant really find what they mean. Also, this past Friday I had the strangest message I have ever seen. Someone was leaving and internal vm for another user and about 8 seconds in it just cut over to another conversation. It sounded as it would if someone changed the radio station on an old radio. It basically tuned in the new conversation. The errors I have gotten are listed below.
Event Type: Error
Event Source: MSExchangeDSAccess
Event Category: Topology
Event ID: 2102
Time: 7:11:57 AM
Process MAD.EXE (PID=2128). All Domain Controller Servers in use are not responding:
The product Microsoft Exchange 2000 Server is out of licenses. Use License Manager from the Administrative Tools folder for more information on which users are out of compliance and how many licenses should be purchased.
The first error you list could be a normal error, if the Unity server is the only GC/DC in its own domain, from newsgroup postings it appears that this event can be safely ignored. Apparently, Microsoft PSS confirmed that this error code is a benign error and is a result of running in a single GC/DC environment.
Also, as per Q328646, this issue may occur if the Exchange Enterprise Servers security group does not have "Manage auditing and security logs" permissions on the domain controller.
Event ID: 3079
See Q263908 and Q821930 for more information
For Event ID: 202
You can turn off the License service and that will stop those errors.
These errors have nothing to do with the conversation problem you described.
When you say it just cut over to another conversation where/when did this happen?
Was it during the caller leaving the message, and the caller reported this to you?
Or were you listening to the recorded message and you could hear the caller interrupted with another Unity prompt?
What was happening was that you would be listening to a message, it would start to garble and then you would hear another conversation overtop of the message being left. Other times the message would just cut out and another conversation to a different user would start to play.
For the 2102 message, the most likely cause is that the Kerberos ticket timed out. When the Kerberos tickets that are associated with the Lightweight Directory Access Protocol (LDAP) connections time out, all LDAP connections get errors because the security contexts have failed. The connections must be reestablished. Because there is only one domain controller in this topology, there are no other servers to obtain a ticket from while this reestablishment takes place. Therefore, the error occurs.
Having at least two GCs will fix this issue but in a standalone Unity, you do not have that luxury.
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