How To Troubleshoot Exchange 2010 OAB - Bits & Bytes
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How to Troubleshoot Exchange 2010 OAB

The offline address book can be a beast to troubleshoot. I have found success many times by following a procedure that I have pieced together. My hope is that it proves helpful to others that run into similar issues. These are the steps I follow when troubleshooting OAB issues for Exchange 2010 environments.

Check the following for misconfigurations:

  • How is the OAB distributed?
  • Check for web based distribution
  • Note the cas servers
  • Note the OAB generation server

Check on each of the distributing cas servers for IIS redirects or incorrect auth or SSL settings on the OAB virtual directory

Correct settings should be:
SSL – none, ignore; Auth – windows auth; redirect should be off

Checktime stamps on the file locations on the distributing cas servers
c:program filesmicrosoftexchange serverv14client accessoab***

Check time stamp on the OAB generation server
c:program filesmicrosoftexchange serverv14OAB***

Run the following cmdlet on the generation server

Update-OfflineAddressbook “Default offline address book”

Check the event viewer on the generation server for events

Check the time stamp on the OAB generation server
c:program filesmicrosoftexchange serverv14OAB***

If you see an updated timestamp then proceed with the below command for each distributing cas server if not then check event viewer

Update-FileDistributionService “CASServerName” -Type OAB

After running this cmdlet check the time stamps on the file location of the distributing cas servers
if all look updated then proceed with testing the download of the OAB via outlook.

Troubleshooting External OAB access is similar but also make sure that your Autodiscover is successful

If these do not fix the missing items issues you will need to proceed by enabling reporting for oal generation

Set-EventLogLevel -Identity “MSExchangeSAOAL Generator” –Level Expert

Check the event viewer for warnings/ errors ( 9325/9327/9320)

Run the following cmdlets on the OAB generation server

Update-OfflineAddressbook “Default offline address book”

Recheck the event viewer

Run the following cmdlets on the OAB generation server

Update-FileDistributionService “CASServerName” -Type OAB

Remember to set the reporting back to lowest when done

Set-EventLogLevel -Identity “MSExchangeSAOAL Generator” –Level lowest
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