Failed to connect to LDAP server

[dtom]

We are running CallManager 7.0.1 and currently when we login to CUCM as the administrator, everyting works fine.  Our current DNS/DHCP server address is 172.16.1.10.  We have just created two new DNS/DHCP servers with the address 172.16.1.20 and 172.16.1.30 and want to turn the old server off.  We made the change by telnet into CUCM:

set network dns primary 172.16.1.20

set network dns secondary 172.16.1.30

After we do this and turn off the old DNS server, we get the following error when we try to login to CUCM:

Failed to connect to LDAP Server

Where else do we need to make changes, cant seem to find it.

[searigg · Accepted solution]

If you reset the DNS service you need to restart the tomcat service and cluster manager.  For these kinds of changes it might make more sense to restart the cluster Publisher first (might not).

1.  utils service restart Cisco Tomcat

2.  utils service restart Cluster Manager

Here is the documentation for 7.0.1

Command Line Reference

http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/cli_ref/7_0_1/cli_ref.html#wp39980   DNS

http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/cli_ref/7_0_1/cli_ref.html#wp42424 Service restart

You can verify if it has restarted with

utils service list

If that doesn't work restart the Pub and verify from the command line that you can ping our DNS server.

Here is the information regarding that command line option:

Design guide in case you need it:

http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/srnd/7x/uc7_0.html

Server admin guide also in case you need it.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucmbe/admin/7_0_1/ccmcfg/b02servr.html

[dtom]

That was it. Thanks for the information.