CCM 4.2 - Lost connection with LDAP

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Jan 13th, 2008
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I don't know why but from time to time a CCM 4.2 looses connection to LDAP without changing anything on the callmanager side.

Do you know what are the probable causes?


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gogasca Sun, 01/13/2008 - 19:52
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CCM AD integrated?

How are you testing the connection?

Exact CCM version and LDAP server?

Any error in EV?

Any error under c:\dcdsrvr\logs ?

Sniffer trace is your friend

Let us know more details

Thanks ana

abartolomeu Mon, 01/14/2008 - 00:00
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CCM AD integrated, yes.

I know there is no connection to ldap because on the callmaneger when I try to search for any AD user it is not possible anymore. Also the IP phones directory is not working anymore.

It's a CCM 4.2(3).

I'll answer the other questions later on.


abartolomeu Mon, 01/14/2008 - 03:11
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Here is some more information:

• At the CallManager Administrator Interface, when trying to reach User>Global Directory, the following error message appears:


The page cannot be displayed


HTTP 500 - Internal server error

Internet Explorer


• The same exact error is displayed when I'm trying to open the CallManager user page (https://callmanager/ccmuser).

• When trying to use the IP phone Corporate Directory to search a contact, after writing the name of the person I'm looking for, this error is displayed:

“Search XML Error …


In the Event Viewer there are errors:

Source: Active Server Pages

Event ID: 4

Description: Service stopped

Probably a service has to be started or restarted at the callmanager?



abartolomeu Mon, 01/14/2008 - 04:50
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I've already restarted the following services:

DC Directory Server, IIS Admin Service, World Wide Web Publishing Service

Some more information:



"UMException Coccured. Error Message I

Blind Faildes. LDAP Error Code 49. Error description Invalid Credentials"


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