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Exchange 2010 SP1 on SBS 2011  - Blank Page when launching OWA

Posted on 2012-08-16
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Last Modified: 2014-04-30
I have Exchange 2010 SP1installed on SBS 2011, when I attempt to launch OWA, i get a blank page. The URL displays: https://localhost/owa/auth/logon.aspx?url=https://localhost/owa/&reason=0

I have done/checked the following and none of them have resolved the issue:

1.      No event log errors  - just a Success log – indicating successfully launch of Outlook Web App
2.      Checked permissions on IIS  OWA virtual directories
3.      Checked OWA configuration ( Forms-based authentication) and restarted Forms based authentication service.
4.      Checked all pre-reqs for OWA have been installed
5.      Ran Updatecas.ps1 script
6.      Reset IIS
7.     Installed Roll Up 7

Does anyone have any other ideas or where else I should be looking.

Many thanks in advance
0
Comment
Question by:mandalj
  • 11
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21 Comments
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 38300515
It would be interesting to see the IIS log entries.  Look for the most recent file in C:\Inetpub\logs\LogFiles\W3SVC1 , and double-click it to open it in Notepad.  You should see entries containing GET /owa followed by GET requests for the logon.aspx file you already mentioned.  Let us know if you find them.
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Author Comment

by:mandalj
ID: 38301455
See attached for iislog
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Author Comment

by:mandalj
ID: 38301457
I also deleted and created the OWA virtual directories - still no luck.
0
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LVL 31

Expert Comment

by:LeeDerbyshire
ID: 38301720
Sorry, I don't see an attachment anywhere.  Can you see it?
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Author Comment

by:mandalj
ID: 38301732
Sorry, try now.
IISLog.bmp
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LVL 78

Expert Comment

by:Rob Williams
ID: 38301862
Are you using the FQDN?  SBS 2003 allowed you to use localhost, servername, or the IP but SBS 2008/2011 requires the correct URL, even internally.  The default would be:
https://remote.YourPublicDomain.abc/owa
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Author Comment

by:mandalj
ID: 38301877
Yes, I am, but it still fails.
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 38301938
Thanks for the screen shot, but it would help more to see the full copied/pasted lines instead of just the first part.  The most interesting part is right at the end (the last four numbers of each line), but unfortunately, it got clipped from the image for the lines we're most interested in.
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LVL 33

Expert Comment

by:Exchange_Geek
ID: 38303106
I'd agree I've seen two such instances before while working with Microsoft for different customers and want to check if you faced a similar issue, it can be only checked if you upload the IIS logs for us.

If your errors match, we can fix this with just slight modifications on IIS.

Regards,
Exchange_Geek
0
 

Author Comment

by:mandalj
ID: 38303263
Thanks. The logs will be uploaded tonorrow.
0
 
LVL 33

Expert Comment

by:Exchange_Geek
ID: 38303985
Great :)

Regards,
Exchange_Geek
0
 

Author Comment

by:mandalj
ID: 38304988
Here's the IIS Log
IIS-Log.txt
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LVL 31

Expert Comment

by:LeeDerbyshire
ID: 38305119
Interesting - you can see that requests for .css (and some other) files are getting a 403.1 response

2012-08-16 16:07:33 ::1 GET /owa/14.1.420.0/themes/resources/logon.css - 443 - ::1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+6.1;+WOW64;+Trident/4.0;+SLCC2;+.NET+CLR+2.0.50727;+.NET4.0C;+.NET4.0E;+.NET+CLR+3.5.30729;+.NET+CLR+3.0.30729;+InfoPath.3;+MS-RTC+EA+2) https://localhost/owa/auth/logon.aspx?url=https://localhost/owa/&reason=0 403 1 5 17

which means something like Execute Access Denied.  But these aren't executable files, so something appears to be misconfigured in IIS.  First, I would look at the properties of the default web site, and then look at the list of MIME types.  Just make sure that .css is in the list, and has a mime type of "text/css" .
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Author Comment

by:mandalj
ID: 38305710
Thanks. The default web site looks fine. Also MIME types were present.
0
 

Accepted Solution

by:
mandalj earned 0 total points
ID: 38305716
I'm leaning towards uninstalling/reinstalling IIS & CAS?
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 38306424
Well, that's another possibility.  I don't like reinstalling on a production server myself, but lots of other people just go for it.
0
 
LVL 33

Expert Comment

by:Exchange_Geek
ID: 38306518
Check for the solution mentioned in KB http://support.microsoft.com/kb/942065

Regards,
Exchange_Geek
0
 

Author Comment

by:mandalj
ID: 38320437
Thanks for the responses. Just waiting for MS to provide some assistance.
0
 

Author Closing Comment

by:mandalj
ID: 39323050
Not an ideal solution, but it worked.
0
 

Expert Comment

by:mediamanager
ID: 40029100
Can you be more precise? What solution did work for you? (having the same problem on a SBS 2011 machine)
0
 

Author Comment

by:mandalj
ID: 40033225
The solution detailed in KB9426065 worked for me.
0

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