Dear Sir,

We have the 03 nos of Windows Server 2008 R2, Advance Domain Controller 

all are not communicate to each other policy and replication not work / each other it is not ping and access also.

Please help for the same

REgards,

Kailash

7350159337

• Moved by Vivian_WangMicrosoft community contributor, Moderator Friday, June 19, 2015 6:29 AM

Hi Mr.Kailash,

This might be the a DNS error. Please check your DNS configure on each DC. Where does it point to? Does your DNS server allow dynamic updates?

Make sure DCs are set to point to the DNS server
at the command prompt type net stop netlogon
at the command prompt type net start netlogon

In addition, check the event view to see more details in the event log.

Best Regards,

Mary Dong

• Edited by Mary DongMicrosoft contingent staff, Moderator Friday, June 19, 2015 8:03 AM

Start with what I shared here: http://www.ahmedmalek.com/web/fr/articles.asp?artid=23

HI Kailash,

Replication error due to DNS, Login privilege for authentication may be failed. reading of events id can help.

repadmin /replsummary to check the replication between domains. once you get the result trouble shoot based on that summary why replications is gettting failed.

Regards

Irfan Ahmed

all are not communicate to each other policy and replication not work / each other it is not ping and access also.

If you have no network connectivity, how do you expect replication to work properly? Start with basic network troubleshooting. Check your firewalls if there are any in place, security software also block the availability of a server. (No Network Connectivity = No Replication)