I have installed OES11 SP2 on 10 servers, 2 for HQ servers and 8 for branch, I have set 2 HQ servers Sync time to my local NTP Server and others servers sync to HQ this working fine and no problem, then I have changed IP address for branch servers and run ndsrepair -T and ndsrepair -N, I noticed that branch servers sync time to all OES servers(10 servers included branch servers) actually they should be sync to HQ server2 only. How can i fix ntp client on Branch to sync to HQ servers only?

Thank you,