Exchange 2007 Multiple Domain Controllers Outlook Client Problem

Environment: Windows 2008 R2 Standard DC's, Exchange 2007, Outlook 2010 client.

Recently, we added a third domain controller to our environment. I wanted to change our exchange server to use the first DC, and the third DC instead of using the first DC and second DC as it was previously setup.

I ran the following commands in exchange console...

set-exchangeserver $exchserver,
set-exchangeserver $exchserver,

Get-ExchangeServer $ExchServer -status |FL

StaticDomainControllers : {,}
StaticGlobalCatalogs    : {,}

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Most of my clients appear to be working correctly, but I have one client that when launching outlook it is prompting him for credentials, but credentials are in reverse order...USERNAME\DOMAIN, instead of DOMAIN\USERNAME....

If I click on the Outlook icon in the system tray and hit "CTRL + Right Click" and select Connection Status, I noticed that it would use two different DC's as the server name instead of the first two lines showing the same DC. If I hit reconnect, I noticed it once put in just the local name of the server without the, and then if I hit reconnect again it will use,, and everything appears to work, but if the client closes outlook and re-opens or reboots the computer the problem returns as it attempts to grab a different connection.

I was wondering if someone had any idea's as to the problem, and could tell me if I set the exchange server domain controllers correctly?
Who is Participating?
Manpreet SIngh KhatraConnect With a Mentor Solutions Architect, Project LeadCommented:
Ohk try this ...

1. Open command prompt and run "Set u" and Set l"
See user details from "set u" and logon server details from "set l"
2. What if you log into the machine with your account does the same problem occurs ? If yes possible machine issue.
3. Try to clear DNS cache.
4. Start -> Run -> Control keymgr.dll (make sure there is no cached profiles\credentials)
5 If not and Outlook works fine than possible user Machine profile corruption or Outlook Profile or Application.
6. Make sure user does not has any static DC\GC defined in registry ?
7. Maybe a new Profile if that works or could even Disjoin and rejoin ?

- Rancy
Once you log on to the PC. Open the command prompt and type set. From the output look for "Logonserver". This will show you with which AD that PC authenticate with.

Go to network and sharing centre | change adapter settings | right click on LAN | Select IPv4 | Properties | Advanced | Click on DNS | Add in "Append these DNS suffixes (in order) and DNS Siffix for these connection.
tech-userAuthor Commented:
clearing cached credentials resolved the problem. I also had to add Domain Users to the sharepoint site.
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