AD 2003 Replication Failure/Authentication Failure

[Nickason]

I am having a single parent domain and 2 child domain. Somehow the parent domain has stopped AD replication. The 2 children dc are not getting any updates. I want some help here to reset the settings again. Is there any repair process also available. I can see ample of errors in the log and not able to get right solution. I do not want to touch any existing settings rightnow that can screw up things more.

[Fatmeer]

It is better you start with all the settings from scratch. First you have eto c heck the time of sync. You can reduce that so that all of them can get more recent settings. Second you can simply check whether the computers on the users are able to access the DC or not. Ensure that all the DC computer objects are having trusted for delegation flag. Test all of this stuff and then check back.