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Exchange 2007 OAB issue after upgrading to SP3

Posted on 2014-10-10
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Last Modified: 2014-10-18
I upgraded to exchange SP£ and installed latest rollup.

However Outlook clients are sitting doing nothing when attemopted to download the OAB.
I've generated a new OAB but to no avail.


I've checked the permissionson the OAB folder

http://blogs.msdn.com/b/dgoldman/archive/2010/04/01/what-are-the-default-permissions-on-the-exchangeoab-directory.aspx

I've restarted but to no available

No OAB files on client under C:\Users\xxxxxxxxx\AppData\Local\Microsoft\Outlook\

All the test autoconfig works so autodiscover seems OK.
However browsing to  http:/server/OAB/ID brings up a service unavailable error?

So that led me herer
http://www.confusedamused.com/notebook/oab-never-downloads-for-outlook-2007-clients-with-exchange-2007-on-server-2008/

BUT this sentence has me

The fix is pretty easy. Open the web.config in the OAB folder, and give Authenticated Users both the read and read and execute permissions.

Where exactly is OAB folder?
As all the ones I see dont have that file?

Might not be the answer anyway, but
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Question by:Majicthise
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LVL 19

Expert Comment

by:Zaheer Iqbal
ID: 40372615
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Author Comment

by:Majicthise
ID: 40372642
Yeah saw that, thanks for the link.
The fact images are missing isn't a great help.

As far as I can see OAB.xml is updating fine
Last update was a couple of hours ago.
I'm sure the issue is an IIS one though as the 503 error seems significant.
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LVL 19

Expert Comment

by:Zaheer Iqbal
ID: 40372660
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LVL 31

Expert Comment

by:Gareth Gudger
ID: 40372890
Have you tried just deleting and recreating the OAB?
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Author Comment

by:Majicthise
ID: 40376456
Yes I tried that but I'm going to go thru the link 1stITMAN send.
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Author Comment

by:Majicthise
ID: 40376565
OK The link didnt work
New OAB created and distributed.
However browsing them still brings up error 503

Server running OWA fine, just OAB causing issues.
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Author Comment

by:Majicthise
ID: 40376587
I should also add that there are two CAS servers.
One on each of our sites.

It is only 1 CAS server that generates the 503 error.

The other site I can browse to to oab.xml fine
and both sites have OWA running fine.

The article ran thru the createion of the OAB and it's related folders & site
having done it the situation remains unchanged for the fully working site
and the partially (OWA only) site.
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LVL 19

Expert Comment

by:Zaheer Iqbal
ID: 40376747
Are you on the most latest update of Exchange now ?
If not please apply the remaining rollups also.
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Author Comment

by:Majicthise
ID: 40376810
Yes I am.
I'm moving to 2013 but want this OAB issue resolved first.

Looking in IIS I'm struggling to find anything wrong
503 error sugest application pool unavailable?
But Checkingone CAS against the other and I'm getting little difference.
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LVL 19

Expert Comment

by:Zaheer Iqbal
ID: 40376819
what error are you getting client side on say outlook ?
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Accepted Solution

by:
Majicthise earned 0 total points
ID: 40376839
OK.
I disabled  ASP. NET 4 in application pools and it works.
I have no applications running it, but it seems to have done the trick.
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Author Closing Comment

by:Majicthise
ID: 40388408
Odd.
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