I have the same issue. Did you find out what was wron when running on
Vista?

Cheers,
Joakim

Eric20817 wrote:
I'm outside the Network using NTLM.

This same setup works fine on an XP machine using Office 2003 from my
location so I know it's not a firewall/network issue.

I'm suspecting it's something with Vista and how it uses certificates or the
like. I tried to run it using 'outlook /rpcdiag' and it prompts me for my
user/pw to the Exchange server as it should. But then it errors out with the
same message as below.



"Diane Poremsky [MVP]" wrote:

it's vista because rpc/http works fine in outlook 2007. Are you inside the
network or outside? Are you using NTLM or Basic auth? (It connects just fine
using HTTPS inside my network.)

--
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
Coauthor, OneNote 2003 for Windows (Visual QuickStart Guide)
Need Help with Common Tasks? http://www.outlook-tips.net/beginner/

Outlook Tips: http://www.outlook-tips.net/
Outlook & Exchange Solutions Center: http://www.slipstick.com
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"Eric20817" wrote in message
...
I tried the usual routing in getting my Vista Beta 2/Outlook 2007 Beta 2 to
connect to our office exchange server.

First, downloadling a cert with IE7 is a real pain because you don't get
the
usual option to 'View Cert' as it tries to protect you from all that jazz.
I
got around that manually.

However, even after I configure the HTTPS proxy etc, after the first
username/login prompt, Outlook tells me it can't communicate with the
Exchange server. In detail, the message is:


The connection to the Microsoft Exchange Server is unavailable. Outlook
must be online or connected to complete this action.


The pause is there which leads me to think it gets to the proxy and
establishes the first part. But after that - it fails very fast.

Any thoughts? I'm going to try this on XP to see if its Vista doing it,
but
the combo is what I'm going to be running throughout the office next year
so
I thought I'd chime in early on this one.