Outlook 2010 vs 2013 - BITS + OAB download

Question

Has the process/protocol by which Outlook downloads the OAB from Exchange via send/recv >> send/recv groups >> download address book changed from Outlook 2010 to 2013?  I stumbled onto the fact that our BITS policy was actually killing OAB
downloads and leading to send/recv progress bar stalling indefinitely depending on Outlook version.  if we have BITS throttled to 0 (disabled) during business hours via group policy, a manual OAB download attempt will just hang indefinitely in Outlook
2010 with nothing populating @ C:\Users\username\AppData\Local\Microsoft\Outlook\Offline Address Books\alphanumeric\*.oab
bitsadmin /list
BITSADMIN version 3.0 [ 7.5.7601 ]
BITS administration utility.
(C) Copyright 2000-2006 Microsoft Corp.
{BF84FE64-C742-4B4D-9F50-34F7A851943B} 'Microsoft Outlook Offline Address Book b
83492211975444ab672c2c1339ed931' TRANSIENT_ERROR 0 / 1 0 / 25491
{86402ACD-D048-4D2D-A5F0-4B83D315442C} 'Microsoft Outlook Offline Address Book b
83492211975444ab672c2c1339ed931' TRANSIENT_ERROR 0 / 1 0 / 25491
Listed 2 job(s).
yet in Outlook 2013 on a machine with same BITS policy applied, send/recv >> send/recv groups >> download address book will go through, and the *.oab files populate -
BITSADMIN version 3.0 [ 7.5.7601 ]
BITS administration utility.
(C) Copyright 2000-2006 Microsoft Corp.
{86402ACD-D048-4D2D-A5F0-4B83D315442C} 'Microsoft Outlook Offline Address Book b
83492211975444ab672c2c1339ed931' TRANSFERRING 0 / 1 5264 / 25491
Listed 1 job(s).
I havent done exhaustive testing, but it appears that both 2010 & 2013 will fail to get OAB automatically while BITS policy is throttling/disabling the xfers but the manual download works on 2013.  For my own info, how is this happening?
related info: http://support.microsoft.com/kb/2619347

Answer 1

Hi,
Since OAB related questions are always discussed in the Exchange forum, I'd recommend you post your question to the Exchange forum to get more professional response:
http://social.technet.microsoft.com/Forums/office/en-US/home?category=exchangeserver
The reason why we recommend posting appropriately is you will get the most
qualifiedpool of
respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding.
Steve Fan
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.