You can disable the option “Download changes since last Send/Receive” to make sure you get a complete fresh copy of the OAB but this could take longer to download.
The other day I was troubleshooting an issue where users were not able to download the Offline Address Book (OAB).
And since this website’s main focus is on Outlook, it makes sense to start with Outlook as well ;-).
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax.
In this guide, the relevant timings are explained and instructions are given in how you can directly force an update and resync, which can be very handy when troubleshooting or when you work in an Exchange environment which sees a lot of user mailbox mutations.
This means that in the worst possible scenario, an update to the Address Book won’t become available to the user until 48 hours after the change.
You need to be assigned permissions before you can run this cmdlet.
Although all parameters for this cmdlet are listed in this topic, you may not have access to some parameters if they're not included in the permissions assigned to you.
This morning I was asked to update the Global Address List and Offline Address Book in an Exchange environment.