I just downloaded a FM Server 13 trial and am trying to test it out using FM Go. I have opened the port 5003 on the iMac that is running the server, but I am still having trouble connecting to the server remotely. I have been on the phone both my internet provider (at&t) and FM tech support and neither one have been able to offer any more trouble shooting suggestions. Filemaker claims that because the server works within our network, that it is an issue with the provider. at&t has checked to ensure that the port is open, but cannot offer any other suggestions.
Are there any other common problems with the set up that I can look into?