Outlook 2013 cannot expand public folder list

Hi all,

I have an Exchange Server 2013 and working fine with Outlook 2010 include Mail/Public Folder functions.

But when I use Outlook 2013 and take the same method (autodiscover) to setup a profile then I got an

issue with "Public Folder" that is when I try to expand Public Folder List it prompts "Cannot expand the folder.  Microsoft Exchange is not available.  Either there are network problems or the Exchange server is down for maintenance."

I have checked server services and they seems running fine. I start to confuse with why Outlook 2010 working fine but Outlook 2013 bad on Public Folder that all connect to the same Exchange Server?

Any Idea?

Thanks In Advance!!

Sincerely,

Jack