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After mailbox move users cannot open premium version of OWA

Hi all,

Strange one here.

I have a perfectly working installation of Exchange 2007 in one domain of our forest.

I was asked to create a new domain in a new tree and migrate everyone across to the new domain.

In the new domain I installed 2 HT/CAS servers and a clustered mailbox server.

Now users that I have migrated to the new domain can open the LITE version of OWA but not the PREMIUM version.

I checked that the Forms based authentication settings are the same from the old HT/CAS and the new ones but can´t think why the OWA won´t fully work.

If a user tries to acces the premium version they get the "Outlook Web Access could not connect to Microsoft Exchange".
Also listed under the details of this error message is:

Exception type: Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException
Exception message: Event Manager was not created.

Inner Exception
Exception type: Microsoft.Mapi.MapiExceptionNetworkError
Exception message: MapiExceptionNetworkError: Unable to make admin interface connection to server. (hr=0x80040115, ec=-2147221227) Diagnostic context: ...... Lid: 13720 dwParam: 0x6BA Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x6BA Msg: EEInfo: NumberOfParameters: 0 Lid: 16280 dwParam: 0x6BA Msg: EEInfo: ComputerName: n/a Lid: 8600 dwParam: 0x6BA Msg: EEInfo: ProcessID: 5092 Lid: 12696 dwParam: 0x6BA Msg: EEInfo: Generation Time: 2008-11-07 04:58:31:876 Lid: 10648 dwParam: 0x6BA Msg: EEInfo: Generating component: 8 Lid: 14744 dwParam: 0x6BA Msg: EEInfo: Status: 11001 Lid: 9624 dwParam: 0x6BA Msg: EEInfo: Detection location: 320 Lid: 13720 dwParam: 0x6BA Msg: EEInfo: Flags: 0 Lid: 11672 dwParam: 0x6BA Msg: EEInfo: NumberOfParameters: 1 Lid: 8856 dwParam: 0x6BA Msg: EEInfo: prm[0]: Unicode string: ONEXC01 Lid: 24060 StoreEc: 0x80040115 Lid: 23746 Lid: 31938 StoreEc: 0x80040115 Lid: 19650 Lid: 27842 StoreEc: 0x80040115 Lid: 20866 Lid: 29058 StoreEc: 0x80040115

Can anyone suggest anything in particular that I could check or should be looking at?

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1 Solution
From what you have written the issue sounds like it could be an issue with the user account or an issue with IIS, right?  To make find where the problem is create a new user in the domain and test access to OWA with a new user account.
IntoFOSAuthor Commented:
Hi all,
The problem has been resolved. A long call to Microsoft sorted out the issue.
My problem was that the rule on the ISA Server for OWA in our environment was configured to authenticate using Basic BUT the Exchange server in the original domain was configured to try and authenticate with both Basic AND IWA. There was a conflict with the authentication methods.
Upon removing the IWA option so Exch would only authenticate using Basic and restarting the IIS services on the original CAS, all migrated users now have normal access.
Thanks for the post tenaj-207
You are welcome, glad you got it fixed.
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