I have a 2003 sbs machine in location A. Sometimes I want to access the server locally and other times I need to access the shared drive over the net. I had the server in location B and everything worked fine. I moved the server to location A and now nothing can access the shares. I have a different router now which I imaging could be the only reason this is happening. Problem is I enabled DMZ for the servers address and I can log into the server via vpn but I cannot access any shared drives on the server. I had a static IP before and now I have dynamic but I am using noip and can log into the vpn with the DDNS name but cannot access "server" over the network. It always times out. What can I do to trouble shoot this?

I had to uninstall sp2 (which was broken) and reinstall it. I then ran windows update and restarted the pc. I was getting an error message telling me that I could not start the vpn server because of some dependencies. I had to install client for Microsoft networks in the properties of my active network connection. All worked from there.