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unbale tp add 2008 DC into existong 2003 AD over MPLS links

akhalighi
akhalighi asked
on
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Last Modified: 2012-05-10
I am having issues with adding my first 2008 server into our existing 2003 AD. here is the scenario :

- 2003 SP2 domain enviornment with 3 existing servers in the same subnet in our main office
- 2008 standrad server is in a different subnet and conected through a 10 MB dedicated MPLS link to main office
- All protocols are allowed , no traffic on the link

Prepared existing 2003 enviornment by running /forestprep and /domianprep switches  
I was able to join this 2008 machine to our existing domain as a member , it's using existing DNS servers and can resolve all DNS names .
I log in as domain admin - no issues
I tested quality f link with a ping :  Ping -n 32 -l 8096 <hostname> and it was fine. no packet lost.
created  a new site and assigned to a 2008 subnet

Then I ran dcpromo on 2008 server to make it an additional domain controller ; it found existing forest , all DCs and started installation of domain controler but it
failed after a few minutes ; here is the error :



Active Directory Domain Services attempted to perform a remote procedure call (RPC) to the following server. The call timed out and was cancelled.

 

Server:

<My_Main_DC_Name>

Call Timeout (Mins):

5

Thread ID:

b98

 

Additional Data

Internal ID:

500140e

So I thought that RPC gets timesout ; created this registry key (on both 2003 and 2008 machines) : RPC Replication Timeout (mins) and set it to 45 min. Restrated both machines , still getting the same issue .



 

any suggestions ?

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