one of our customer has 2 office locations.Now there is a web server using IIS 7.0 at one location which they use to create reports. The server is confiured with a 1-to-1 NAT on a static ip & can be accessed from anywhere remotely & locally with no problems. The problem is accessing a shared drive on the same machine thats running the webserver. Local office can access shared drive & web server using local network ip address like 10.0.10.24, but remote office can only access web server using static ip & cannot access the shared drive. They do not want to use VPN & since it used to work without VPN before they changed their ISP at one remote location. I tried different settings, but no luck. Is there any ports that i need to open on the main gateway router of local office. Also both location now has comcast as their ISP.