Oab not updating exchange 2016 server

So Microsoft Exchange File Distribution Service is removed from the CAS role.

I am trying to explain the conventional methods for forcing the OAB generation in Exchange 2013 and fresh download on an Outlook 2013 environment.

In Exchange 2013, the OAB is generated by each Exchange 2013 Mailbox server(s) that hosts a special type of arbitration mailbox, called organization mailbox.

The unbinding of OAB from a specific server allows the same OAB to be generated by multiple Mailbox servers.

When i look in this folder (C:\Program Files\Microsoft\Exchange Server\V14\Client Access\OAB) on the IIS server, I see a folder with date modified today, but the files in this folder have all modified date a few months ago ? Ive also found a folder (C:\Program Files\Microsoft\Exchange Server\V14\Exchange OAB) which contains more recent files but not from today when i updated the offline address book via the exchange management console What am i missing ?

In Exchange 2010 it takes even longer to synchronize the changes in the OAB than Exchange 2007.

By using an offline address book, Outlook doesn’t have to connect to Microsoft Exchange Server to resolve names or open the records for each user.

This is some times required in case your OAB generation/download is not properly working.

There are two methods available in server side to generate new Offline Address Book 1.

I am going to rename the corresponding GUID folder as shown below (Exit Outlook first), to initiate a fresh oab download.

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