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OWA/Exchange 2007 issues

Posted on 2009-04-01
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Last Modified: 2012-05-06
We are currently in the process of an exchange 2003 to 2007 migration

When 2007 users attempt to log into webmail - they get this error

They get prompted via a form for authentication, then when they authenticate successfully, a windows dialogue box comes up and asks the same authentication question, after successfully authenticating for the second time, it then gives this error.

Outlook Web Access did not initialize. An event has been logged so that the system administrator can resolve the issue. Please contact technical support for your organization.

In the event log, the error reads this, even though we're actually using forms based authentication:

Log Name:      Application
Source:        MSExchange OWA
Date:          4/1/2009 12:59:40 PM
Event ID:      29
Task Category: Configuration
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      <COMPUTERNAME>
Description:
There is an error in your Outlook Web Access configuration.

The authentication type specified in the C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\Web.config file is incorrect. The correct authentication type is "Windows".
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange OWA" />
    <EventID Qualifiers="49152">29</EventID>
    <Level>2</Level>
    <Task>3</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2009-04-01T19:59:40.000Z" />
    <EventRecordID>9445</EventRecordID>
    <Channel>Application</Channel>
    <Computer>pd-nr-w-em-1.norwoodaustin.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>C:\Program Files\Microsoft\Exchange Server\ClientAccess\owa\</Data>
  </EventData>
</Event>

Any thoughts on this?
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Question by:norwoodhelpdesk
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11 Comments
 
LVL 49

Expert Comment

by:Akhater
ID: 24043923
make sure your exchange 2007 server is member of the "Exchange Domain Servers" group

if not add it to that group and restart exchange server
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Author Comment

by:norwoodhelpdesk
ID: 24044406
   the main server serving up OWA was not in there, nor was the back end target...     I put them in there, rebooted the front end.  Unfortunately, no dice.
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LVL 49

Expert Comment

by:Akhater
ID: 24044420
what do you mean by OWA and backend target?

how many exchange do you have and what are their roles?

thanks
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Author Comment

by:norwoodhelpdesk
ID: 24044466
I have to admit that our solution is architected somewhat like an 03 still

1 server at our datacenter where our internet pipe comes in that is serving up front end for OWA on the 2003 boxes, and OWA for 2007 (HT/CAS Roles)

On the back end, we have
7 servers in various locations, 3 - 2007 and 4 - 2003 boxes
The 3 - 2007 servers are all typicall installs.   CAS/MB/HT roles.
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LVL 49

Expert Comment

by:Akhater
ID: 24044479
"1 server at our datacenter where our internet pipe comes in that is serving up front end for OWA on the 2003 boxes, and OWA for 2007 (HT/CAS Roles)"

what exchange is installed on that server ? or are these 2 servers?


a 2003 front end cannot server 2007 backends
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Author Comment

by:norwoodhelpdesk
ID: 24044489
It's a 2007 box.  HT and CAS roles installed.
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LVL 49

Expert Comment

by:Akhater
ID: 24044499
ok

and you are experiencing the OWA issue with mailboxes on both 2003 and 2007 backends ?
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Author Comment

by:norwoodhelpdesk
ID: 24044502
Only on the 2007 are we experiencing issues
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Accepted Solution

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Akhater earned 500 total points
ID: 24044515
so the CAS is able to serve 2003 backends

can you try to restart one of the backends you've added to the "Exchange Domain Servers" and try again ?
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Author Closing Comment

by:norwoodhelpdesk
ID: 31565541
None
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