After upgrade from CUCM 8.5 to 8.6 the subscribers are configured to use themselves as NTP servers, this causes database replication issuesI want to knwo how to correct the ntp configuration on the subscribers,Thx!

When  I upgrade CUCM from 8.5 version to 8.6,database report show pub status is 2--good, sub status is 0--initializing,then I try to rebooted the sub server,but issue persist,then I also try below step to try to fix the problem,but fail;1/utils dbrep...