I have some clients that are connecting fine over VPN to Exchange 2003. Some of the users I have moved over to Exchange 2010 and I've done nothing to set Outlook Anywhere up, as I want the users to connect via VPN.
Now, the users that connect to 2003 and 2010 are non domain members, they either have host files full of all the server addresses (FQDN's too). What's strange is that the 2010 users can't connect at all. Basically says that Exchange is not available.
I have a user or two that were on the LAN when I moved them over and they opened Outlook, all worked fine. They have since gone home, been able to work over VPN for over a week and not had an issue. It almost seems that the initial setup of the user is what's causing this over VPN.
Any clues as to what could be causing this?