Oab not updating exchange 2016 ccr

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However, the OAB files aren't replicated as part of this process.The article here explains the dilemma basically says to ensure the 'SYSTEM\Current Control Set\Services\MSExchange SA\Parameters\OABGen-Server\Enable Oab Gen On This Node' registry key reflects the active node - which it does.There will also be a delay where you’ll need to wait for your Outlook clients to refresh their autodiscover configuration.You can run the “Test Email Auto Configuration…” to see if the OAB is now being passed to your clients.Investigating the event log on the CAS server throws up several errors from the Microsoft Exchange File Distribution service: Process MSExchange (PID=1500).Could not find directory \E2K7EXCS02\Exchange OABdc5977-0a50-4506-ad04-7081c945f618. This is normal if the directory has never been generated.

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Further Troubleshooting Let’s see where the OAB generating mailbox is and if the database is mounted.

All my virtual directories and URLs were fine, and the OAB was being generated fine without any issues. I couldn’t find any references of this occurring to other users.

I finally discovered that the “Web Distribution Enabled” configuration flag was marked to False, when it needs to be marked as True.

When setting this second flag to True, it also sets the first one above to True as well.

To fix it we’ll use Exchange Power Shell: Let’s find the name of your Offline Address Book by running the command below: After making the above changes I recommend issuing an “iisreset” or restarting your Exchange Server.

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