After Exchange 2010 SP2 Rollup Update 3 - Problems with autodiscover

[anarine]

yesterday after I installed rollup update 3, I began getting errors in the app log for cas servers - "user setting preferredsite not available." See more here:
Exchange 2010 SP2 update rollup 3 - Errors with autodiscover

I would greatly appreciate it if anyone can confirm this is an issue with the update rollup. Thanks!

[PaulCunningham]

I'm not seeing that error in my environments which are updated to SP2 UR3.

How many versions of Exchange are you running? 2003/2007/2010? That forums thread suggests it only occurs in mixed orgs.

[PaulCunningham]

I've seen some info from Microsoft that this is a known issue, the errors are harmless, and apparently only occur when an Exchange 2003 mailbox user hits Autodiscover (ie their Outlook 2007/2010 makes an Autodiscover request).

Does that sound right for your scenario?