This is my issue:
We are using Exchange 2010 and Outlook 2007. Last week we added a new conference room in Exchange. When I look up the conference room in the Global Address List, it doesn't show up. However, if I delete my .oab files (Offline Address Book) then I can see the new conference room in the Global Address List. When I download the Offline Address Book again, the problem returns. To make this more confusing, some users are able to see the conference room in the Global Address List without removing their offline address book. Is Outlook ignoring their OAB and getting a live copy of the GAL? All users are in cached mode. I am definitely no Outlook/Exchange expert. Am I missing something obvious here? Your help is greatly appreciated.
Best Answer
We figured it out! So as I understood from our Sys Admin, the oab files are generated on one server, and rely on the file replication service on the global catalog servers (we have 2 of them) to copy the oab files to each of the servers. The service was not started on one of the servers and therefore some users were getting old oab's while other users were getting fresh copies. Moral of the story... if you're having this issue, make sure the file replication service is started. Or restart it...