presence Failed to connect to CUCM Dbmon

Unanswered Question
Aug 6th, 2009
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I have noticed on a number of occasion that syncing between CUCM and CUPS is not functioning properly.

for instance when I want to add a CUPC user, and I add the licence to that specific user in CUCM, it is not replicated to CUPS (the CUPC licence field is nojt ticked in CUPS).

when i manually restart the sync agent in CUPS, it forces a resync and most of the times this cascades down to CUPS).

In the tracelog of CUPS i do read the following output:



2009-08-07 12:30:52,587 ERROR [Thread-5] sync.DbmonClient - Failed to connect to CUCM Dbmon.

2009-08-07 12:34:31,591 ERROR [Thread-5] ncs.NcsClient - NcsClient:[email protected] IOExc : Connection timed out Connection timed out

This allthough the sync agent troubleshooter in diagnostics in CUPS shows no signs of issues (all green)

anybody experienced similar issues

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Overall Rating: 4 (1 ratings)
htluo Fri, 08/07/2009 - 05:26
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This is called "change notification failure". You need ClusterManager logs to troubleshoot.

Possible causes include (but not limited to):

1) CUCM's hostname is not in CUPS' host table.

2) CUPS' secrete password does not match with CUCM cluster.

3) Host name/IP address was changed on CUCM after CUPS was installed.


snicklas Thu, 08/26/2010 - 12:04
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Was the hostname mismatch for me.  Thanks.


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