Outlook Continuously Asks for User Name and Password

Have a situation where outlook 2010 is continuously prompting users for credentials. The exchange 2010 environment lives in a separate forest and the users are connected with linked accounts and external domain trusts. Problem did not start occurring until the original 2003 domain controller, dns, dhcp,  was replaced with two new 2008r2 servers. It appears that mail continues to flow in and out just fine even if you ignore the prompt. Problem is also not consistent across all users at the office. A few have not even experienced the problem at all. The basics have already been attempted such as clearing out passwords in the accounts manager and new outlook profiles. Exchange 2010 and outlook clients are configured for outlook anywhere basic authentication.
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cpgtechsupportAsked:
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jerseysamCommented:
Maybe some clues in this post:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_26855800.html

Although relates to Outlook 2007 it may be helpful to check a few things.
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cpgtechsupportAuthor Commented:
That does not appear to help. This is not affecting the domain that exchange lives. Multiple domain trusts are connected to the exchange domain. Only this one domain is having problems and it occurred after the migration from 2003 to 2008r2 domain controllers /dhcp /dns servers.
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discoveranotherCommented:
IGNORE THIS - ADDED TO INCORRECT THREAD !
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