2 exchange servers (Ex1 & Ex2 one in each WAN site), Ex1 is mailbox/CAS, Ex2 is just mailbox. Ex2 generated the 'default offline address list'. This was working until 9/2/12 it seems.
Users in both sites get the incorrect out of date OAB. When I delete the oab files the address book in outlook is up to date until I issue a 'download address book' command. Then the oab is created and once again out of date.
When I issue a 'Test Email Autoconfiguration' from the outlook system tray icon in either site, the OAB URL is https://localexchangeserver.ourdomain.com/OAB/984104a9-9df0-4fc9-aa71-a1f0t3g23a7b
but when checking the exchange servers in the following folders:
C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\OA
C:\Program Files\Microsoft\Exchange Server\V14\ExchangeOAB
both contain a folder called 984104a9-9df0-4fc9-aa71-a1
with a modified date of today but the modified date of all the LZX files and the oab.xml inside the folder is 9/2/12
Exchange File Distribution and BITS are both running on both servers.
I hope this makes sense! What is the next step to troubleshoot?