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Duplicate User ID in Multiple Domains

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Hi all,

If I have the following scenario for a WPA2/TLS environment,

Forest A

--Domain A

-----User = DOMAINA\QW12345

--Domain B

-----User = DOMAINB\QW12345

When a wireless connection is established using TLS, the users in both domains present their fully qualified user names; including the domain. 

Even though DOMAINB\QW12345 supplies the domain as being "B" when it connects, the NPS server uses a user account from its own domain "A", which is identical to the one in B. 

As a result, instead of authenticating the user B\QW12345, it uses A\QW12345 which is a completely different user.

This behavior only occurs on users that have identical saMAccountName's in both domains. 

Has anybody ever seen this?

TIA


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