I have the following setup:
MS Exhcange 2007 on the internal network.
ISA Server 2006 firewall
MS Outlook 2007 on Windows 7
I have access through the VPN - can file share, remote desktop etc. no problem

When I try to connect Outlook to my account on the Exchange server from
inside, no problem

When I try to connect through the VPN, it appears to make a connection, but
every time it tries to download mail it loses the connection, it then
re-attaches and then tries to download email then loses connection - over and
over.
I can download Headers, but as soon as I mark an email for download, the
client tries to download and loses connection.

I cannot figure this out. I had it working flawlessly before I upgraded to
Vista and then Windows 7 !!

I have tried in Cached mode (which worked before) and not chached mode.

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Thanks for any help
Patrick McDonald