Hi All, Recently, i setup exch 2010 server, however i using outlook 2007 connect server, it always pop-up request the username & password, why? Is Exchange or outlook problem? how to fix it? Thank!

Hummm .. Is it hapening for all users ??? What version of Exchange 2010 you are using . Is it production ?. Public Folder doesn't work with Outlook 2007 in current public beta and have some issue with outlook 2007. Exchange 2010 introduces a new client access service named RPC Client Access . This service lives on the Client Access Server (CAS) and allows MAPI clients (Outlook) to connect to a CAS server just like pretty much all the other Exchange clients do. Check property for autodiscover property in server for authentication. Under Autodiscover properties> Directory Security> Authentication Methods> I checked "Integrated Windows Authentication". ---------------------------------------------------------------------------------------------------------- If you are using exch 2010 Beta version then Refer below thread for registry keys... http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/7d5cf3dc-71b6-4252-95d6-6c52e654f90d Anil

Hi Anil, yes, it hapening for all user,. For the version, i need to check to confirm i will try your ways later thank

I suspect it's a misconfigured virtual directory in IIS. Outlook 2007 uses Exchange Web Services for things like out of office, offline address book, and free-busy data. -- Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." . "Archers Wong" wrote in message news:c1b0723f-320f-4d41-af38-f0b09b4885bf... Hi All, Recently, i setup exch 2010 server, however i using outlook 2007 connect server, it always pop-up request the username & password, why? Is Exchange or outlook problem? how to fix it? Thank! Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi Archers Wong, Any update for your issue? Please refer to below link: http://support.microsoft.com/kb/956531 Regards! gavin

Thank for your reply i will try your solution tomorrow

Hey Wong, Any update ?Anil

my friends was fixed it he config IIS on server 2008 then the problem was fix