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MrWhy

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Exchange routing group not working

I had a working environment with exchange 2003on a 2003 server and exchange 2010 on a 2008 R2 server and a bidirectional routing group in between.
I was in the process of migrating mailboxes from 2003 to 2010, when suddenly one of the mailbox migrations failed with an error message implying insufficient rights. I was investigating as people started complaining about missing inbound mail, and outbound mail stuck in the out-box.
I then found that the CA-service on my certificate server had stopped, and would not start again. (Bad key) Following advice from microsoft forums, I reinstalled CA, and restored the latest backup .  Now both exchange 2003 and 2010 starts without errors, but the routing group connector on the 2003 is stuck with 110 messages. The CA is used for the 2003 only.
Any clues?
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Simon Butler (Sembee)
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Ok. One more symptom. When restarting the 2003 i get four errors in application events:
ID 8026: LDAP BINDwas unsuccessful on directory. x.y.y.no for distinguished name ". Directory returned error: (0x51) Server down.

ID 8260: Could not open LDAP Session to directory "x.y.y.no" using server credentials.
Cannot access address list configuration information. Make sure the server 'x.x.x.no' is running.

     (note about that one. x.x.x.no was my old domain controller, whis has been demoted and removed from the domain, then recreated with the same name as my CA, as suggested by microsoft. My new domain controller is v.y.z.no )

Then the same two ID's are repeated, but the information "DC=y,DC=z,DC=no is appended at the end.
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ASKER

Yes I issued SSL certificates for the old 2003 for owa. I bought one for the 2010.

I have trouble figuring out the syntax for remove-routinggroupconnect. I tried:

remove-routinggroupconnect -identity "xxx RGC"

I get the error "The operation couldn't be performed because "xxx RGC" matches multiple entries.
Those errors mean that Exchange cannot connect to the domain controller.
Check that the Exchange 2003 server hasn't been hard coded to a specific domain controller (Properties of the server in ESM) and the DNS settings are correct.

Simon.
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ASKER

In the server properties Under "Directory access" The new domain controller is listed three times, as type Config, dc and gc, if that was what you meant. Otherwise DNS seems correct.
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Domain controller checked, and working. No errors in the logs.
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My comment describes the cause of the problem, and part of the solution not mentioned by the others. Their help were still invaluable.