VPN hates my server after firewall asked to unblock it! Help!

Hey all,

This may be a VERY simple question but i can't seem to find out the cause of it. I have a laptop that needs to connect via VPN to a server running an application 'Filemaker Pro 8.5". I connected the VPN to the lan and everything worked fine i was able to access the IP 192.168.100.110 with no problems. Then windows firewall popped up and asked if it should block it. I told it to unblock.

At this point I closed the program thinking everything was gravy. Now when I go to reconnect to that program over VPN it hangs. And now I cannot ping the server 192.168.100.110.

I have tried a crapload of things to try and fix this, but no luck so far. I even did winsock reset.

Now I can connect to the other servers fine...I can even run Filemaker 5.5 on a different server. However this laptop is ONLY for Filemaker 8.5 so I have to be able to connect, that is all it will do.

What do you think the problem is? Why could I connect then now no longer?

PS. I have disabled all Firewalls on the pc and AV.