I've encountered a strange problem. I have a remote office that needs to access my ticketing system on an Apache webserver. I created an ACL on my router that allows access to their public IP.
I was able to test a few of the machines in their LAN and only about 50% can access the site. The others give me a "Network Error (tcp_error) Operation timed out" message. This happens both when i use the name and IP.