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Exchange 2010 - Offline Address Book will not download

The issue is Outlook clients are unable to download Offline Address Book. SBS 2011 is getting the following application warning several time a minutes. Hoping someone can point me in the right direction on how to resolve this.

Log Name: Application
Source: ASP.NET 4.0.30319.0
Date: 10/12/2011 3:29:44 PM
Event ID: 1310
Task Category: Web Event
Level: Warning
Keywords: Classic
User: N/A
Computer: XXXXXXXX.XXXXXX.local
Description:
Event code: 3008 Event message: A configuration error has occurred. Event time: 10/12/2011 3:29:44 PM Event time (UTC): 10/12/2011 10:29:44 PM Event ID: 99a2caf50461440e96667066d272e432 Event sequence: 1 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/1/ROOT-2600-129629321841793347 Trust level: Full Application Virtual Path: / Application Path: C:\inetpub\wwwroot\ Machine name: XXXXXXXXX Process information: Process ID: 17436 Process name: w3wp.exe Account name: NT AUTHORITY\NETWORK SERVICE Exception information: Exception type: ConfigurationErrorsException Exception message: Could not load file or assembly 'Microsoft.Exchange.Clients.Owa' or one of its dependencies. The system cannot find the file specified.
at System.Web.Configuration.ConfigUtil.GetType(String typeName, String propertyName, ConfigurationElement configElement, XmlNode node, Boolean checkAptcaBit, Boolean ignoreCase)
at System.Web.Configuration.Common.ModulesEntry.SecureGetType(String typeName, String propertyName, ConfigurationElement configElement)
at System.Web.Configuration.Common.ModulesEntry..ctor(String name, String typeName, String propertyName, ConfigurationElement configElement)
at System.Web.HttpApplication.BuildIntegratedModuleCollection(List`1 moduleList)
at System.Web.HttpApplication.GetModuleCollection(IntPtr appContext)
at System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers)
at System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context)
at System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
at System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)

Could not load file or assembly 'Microsoft.Exchange.Clients.Owa' or one of its dependencies. The system cannot find the file specified.
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, Boolean loadTypeFromPartialName)
at System.Type.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase)
at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase)
at System.Web.Configuration.ConfigUtil.GetType(String typeName, String propertyName, ConfigurationElement configElement, XmlNode node, Boolean checkAptcaBit, Boolean ignoreCase)

Request information: Request URL: https://XXXX.XXXXXXX.com:443/OAB/88372d40-ed73-4026-92e0-fd04c08f2342/oab.xml Request path: /OAB/88372d40-ed73-4026-92e0-fd04c08f2342/oab.xml User host address: 10.0.0.134 User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE Thread information: Thread ID: 112 Thread account name: NT AUTHORITY\NETWORK SERVICE Is impersonating: False Stack trace: at System.Web.Configuration.ConfigUtil.GetType(String typeName, String propertyName, ConfigurationElement configElement, XmlNode node, Boolean checkAptcaBit, Boolean ignoreCase)
at System.Web.Configuration.Common.ModulesEntry.SecureGetType(String typeName, String propertyName, ConfigurationElement configElement)
at System.Web.Configuration.Common.ModulesEntry..ctor(String name, String typeName, String propertyName, ConfigurationElement configElement)
at System.Web.HttpApplication.BuildIntegratedModuleCollection(List`1 moduleList)
at System.Web.HttpApplication.GetModuleCollection(IntPtr appContext)
at System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers)
at System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context)
at System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
at System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)
Custom event details:

SuperTaco

First I recommend you to run EXBPA to have a health scan and then check the report.

Then please try to ensure if ActiveSync, OWA works properly(network connecting, data sync, etc).

If there’s no error, then please try to follow the steps below to registry Asp.net 64-bit.

1. Go to %SYSTEMROOT%\Microsoft.NET\Framework\v2.0.50727\ directory and run
“aspnet_regiis.exe -i -enable" to install and register ASP.NET 2.0 to IIS

2. Open command prompt and run IISReset once.

You can test the Exchange connectivity with the following website

https://www.testexchangeconnectivity.com/

You can also try running the following command to uninstall and re-install ASP.net

Re-register\reinstall .net by issuing the following command from withing the .net framework folder

aspnet_regiis.exe -i -enable

SuperTaco

Sorry, unregister and re-register, not uninstall and re-sintall

polarstar

ASKER

EXBPA doesn't find any errors.

I have a follow up question. If the event ID references ASP.NET 4.0.30319.0 why would I unregister and re-register ASP.NET 2.0 to IIS?

This is Exchange 2010 on SBS 2011 and I have noticed on this install and other installations of SBS 2011 that the OAB directory in IIS is using ASP.NET 4.0 and not ASP.NET 2.0. This is reason I'm asking the question above.

Thanks

polarstar

ASKER

Also I need to include that ActiveSync and OWA are both working. People using Offline Address Books are unable to download the Offline Address Books and in one person case his Outlook constantly tries to "send and receive" but gets hung on processing Offline Address Book.

ASKER CERTIFIED SOLUTION

polarstar

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polarstar

ASKER

The fixed descrived in my comment resolved the issue