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OWA not working after upgrade to SP2, Event ID 1310

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OWA not working after upgrade to SP2, Event ID 1310 - 14.Mar.2012 9:53:35 PM   
hunglikethor

 

Posts: 64
Joined: 13.Oct.2006
Status: offline
Recently upgraded both my Exchange 2010 servers (DAG) to SP2. Now one of them will not accept connection to OWA. If someone could help me resolve this issue, much appreciated. I get 2 Event ID 1310 errors:

Event #1

Log Name: Application
Source: ASP.NET 2.0.50727.0
Date: 3/14/2012 6:40:59 PM
Event ID: 1310
Task Category: Web Event
Level: Warning
Keywords: Classic
User: N/A
Computer: exchange2010b.mmicmanhomenet.local
Description:
Event code: 3008
Event message: A configuration error has occurred.
Event time: 3/14/2012 6:40:59 PM
Event time (UTC): 3/15/2012 1:40:59 AM
Event ID: c0f5925a65744e01b4d05fc0298aa584
Event sequence: 1
Event occurrence: 1
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/1/ROOT/Autodiscover-4-129762492590981476
Trust level: Full
Application Virtual Path: /Autodiscover
Application Path: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Autodiscover\
Machine name: EXCHANGE2010B

Process information:
Process ID: 3648
Process name: w3wp.exe
Account name: NT AUTHORITY\SYSTEM

Exception information:
Exception type: HttpException
Exception message: Could not load file or assembly 'Microsoft.Exchange.Security, Version=14.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. (C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Autodiscover\web.config line 940)

Request information:
Request URL: https://exchange2010b.mmicmanhomenet.local:443/autodiscover/autodiscover.xml
Request path: /autodiscover/autodiscover.xml


Event #2

Log Name: Application
Source: ASP.NET 2.0.50727.0
Date: 3/14/2012 6:40:45 PM
Event ID: 1310
Task Category: Web Event
Level: Warning
Keywords: Classic
User: N/A
Computer: exchange2010b.mmicmanhomenet.local
Description:
Event code: 3008
Event message: A configuration error has occurred.
Event time: 3/14/2012 6:40:45 PM
Event time (UTC): 3/15/2012 1:40:45 AM
Event ID: b6ce9c7986db4551be1c5ba3b1c58814
Event sequence: 1
Event occurrence: 1
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/1/ROOT/EWS-4-129762492454181174
Trust level: Full
Application Virtual Path: /EWS
Application Path: C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\exchweb\EWS\
Machine name: EXCHANGE2010B

Process information:
Process ID: 6832
Process name: w3wp.exe
Account name: NT AUTHORITY\SYSTEM

Exception information:
Exception type: HttpException
Exception message: Could not load file or assembly 'Microsoft.Exchange.Security, Version=14.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified. (C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\exchweb\EWS\web.config line 2392)

Request information:
Request URL: https://exchange2010b.mmicmanhomenet.local:443/EWS/Exchange.asmx
Request path: /EWS/Exchange.asmx
Post #: 1
RE: OWA not working after upgrade to SP2, Event ID 1310 - 16.Mar.2012 6:29:02 AM   
jveldh

 

Posts: 2335
Joined: 12.Apr.2008
From: The Netherlands
Status: offline
Hi,

Please go to C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\exchweb\EWS\ and open the web.config file.

The go to line 2392 and check to which file it points.

Regards,
Johan

_____________________________

Best regards,

Johan Veldhuis

Visit my Exchange blog

(in reply to hunglikethor)
Post #: 2
RE: OWA not working after upgrade to SP2, Event ID 1310 - 16.Mar.2012 12:53:15 PM   
hunglikethor

 

Posts: 64
Joined: 13.Oct.2006
Status: offline
For Event #1
line 940 in "C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Autodiscover\web.config" is

<add assembly="Microsoft.Exchange.Security, Version=14.0.0.0, Culture=neutral, publicKeyToken=31bf3856ad364e35" />


For Event #2
line 2392 in "C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\exchweb\EWS\web.config" is


<add assembly="Microsoft.Exchange.Security, Version=14.0.0.0, Culture=neutral, publicKeyToken=31bf3856ad364e35" />

(in reply to jveldh)
Post #: 3
RE: OWA not working after upgrade to SP2, Event ID 1310 - 17.Mar.2012 12:15:04 AM   
hunglikethor

 

Posts: 64
Joined: 13.Oct.2006
Status: offline
Figured it out myself. Just restored IIS files from backup and Exchange 2010 SP2 OWA worked fine. Recommend a backup before all patches as according to my Windows Exchange contacts this happens quite often!

(in reply to hunglikethor)
Post #: 4

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