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Can't authenticate users at specific site within domain

Posted on 2008-11-03
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Last Modified: 2013-11-25
I have a domain with a few subdomains.
I have 1 Exchange server, they all get email from one server.
At 1 site I can't get email. It won't authenticate a user. nslookup works, ping works, tracert works. I can ping servers to and from this site...
I'm also having problems with AD replication...I'm getting replication errors from replmon also....
DNS appears to work....i can ping by ip, netbios name and fully qualified name....
The site has it's own domain controller, but if I login a user from another domain, it logs them in across the WAN...If I login a user from the domain where this site is located, It authenticates with the local DC
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Question by:bernardb
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Expert Comment

by:g000se
ID: 22868370
hello, bernardb.

What do the replication errors say?

Tx.
g000se
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Author Comment

by:bernardb
ID: 22868424
Replication Failure: Changes have not been successfully replicated from ServerXXX for 365 attempts
Replication Failure: The reason is: The remote procedure call failed.
Replication Failure: The last replication attempt was: 11/3/2008 10:19:38 AM (local)
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Expert Comment

by:g000se
ID: 22868510
What has changed recently in your environment?
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Author Comment

by:bernardb
ID: 22868651
We went from Frame relay to MPLS
We installed a new ASA Cisco Firewall
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Expert Comment

by:g000se
ID: 22868804
So the sites were replicating before the change?
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Author Comment

by:bernardb
ID: 22868844
yes
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Expert Comment

by:g000se
ID: 22869026
Have you tried running a DCdiag /fix ?
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Expert Comment

by:g000se
ID: 22869057
Sry I cant assist right now, as I have to step out for a meeting.  

You may have done this but if not, try to use the Experts Exchange Search engine.  It will help direct you.
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Accepted Solution

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g000se earned 500 total points
ID: 22869065
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Author Comment

by:bernardb
ID: 22869129
OK, Thanks
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LVL 11

Expert Comment

by:g000se
ID: 22876383
Are you getting DNS errors as well?
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Author Comment

by:bernardb
ID: 22914785
The problem was actually a router issue...the replication errors and Outlook access was resolved by the company that manages my new MPLS.

Thanks for the suggestions
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Author Closing Comment

by:bernardb
ID: 31512750
Resolve by company that manages my routers, along with Cisco
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Expert Comment

by:g000se
ID: 23003649
I am glad to hear it worked out.   Thanks Bernardb.  

I am curious to what changes did they have to make on the router?  Change an IP route?  Tx.
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