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Windows 2003 SBS AD Replication issue

Hi,
I've two Windows 2003 SBS server in two different farm.
One is primary controller, the other is replicated.
Replica is not working anymore; I've checked firewall issue but the traffic is ok.
The error  I got seems to be related to DNS issue; anyway, I think the resolver is ok as I can successfully ping the two machine names each other.
The errors I got are:

active directory replication failed rpc server unavailable

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and
Active Directory replication has failed because of a DNS or a NetBIOS lookup failure

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Any suggestion?
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Armitage318
Asked:
Armitage318
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1 Solution
 
jmarti80Commented:
The first thing I would check is to make sure that the RPC and RPC Locator services are running on both servers.  Go to START-->RUN-->type in services.msc--> scroll down to "Remote Procedure Call (RPC) and make sure it is STARTED.  Do the same for "Remote Procedure Call (RPC) Locator".
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Sarang TinguriaSr EngineerCommented:
I've two Windows 2003 SBS server in two different farm.
One is primary controller, the other is replicated.

I am not sure what this statement means ..Coz two SBS can not be part of same domain ..Can you define your environment
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Armitage318Author Commented:
Hi jmarti80, on both server RPC's services are up and running.
sarang_tinguria, the "replication" server is Windows Server 2003 Standard Edition, sorry for my mistake.
What can I check further?
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Sarang TinguriaSr EngineerCommented:
Make sure below DNS best practices are met


Best practices for DNS client settings on DC and domain members.
http://abhijitw.wordpress.com/2012/03/03/best-practices-for-dns-client-settings-on-domain-controller/

also post the repadmin /replsum logs
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