Outlook clients have not been downloading the OAB for over a week now. This affects all users of the company. They all use Outlook 2010 however I have tried 2007 and the issue is the same. Obviously a server side issue.
I have tried everything I can find. Please see my experts exchange post for more details:
http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_28012421.html#a38846938
Paul B