WOW! I had to ask again because any competent IT person would never setup file sharing over the internet using NetBIOS. Most ISPs block NetBIOS ports so I would first check to make sure Comcast didnt change anything. Second you need to make sure that ports 137-139 and 445 are forwarded to the correct computer inside the network. However this is a HUGE mistake. Setting this up like this opens up the company's files for anyone on the internet to access. Why this was setup in the first place is beyond me and in my opinion is downright reckless and irresponsible. If they want to share files across locations they need to use a VPN plain and simple or get some kind of dedicated connection between locations. I cant stress enough how setting it up the way it was would be a huge mistake. :nono: