I was setting up a DVR to be accessed from outside a restaurants network. They purchased a static IP address. I've set these up a half dozen times before, usually with no-ip.org this was my first time that a client actually bought a static line so I thought it would be easier. So I setup my router, an old wrt100 Linksys, with all the correct static IP and DNS info. Setup port forwarding and tried to connect from my phone's internet connection using a laptop. No luck. So I set the laptop as the port forward address and ran a portscan from a website, and checked the port individually from canyouseeme.org. Both said "Refused connection" or a derivation there-of. The scan showed this for all ports. I disabled the firewall and set the laptop as DMZ and still got this message on every port I checked. I then plugged the laptop directly to the modem (SURFBOARD SBG6580) and entered the static IP info into the network adapter settings. Internet connection worked fine but still kept getting "refused connection". I then spent an hour on the phone with Brighthouse Networks as they tested everything on their end, and inside the modem (which is actually a modem/router but they wouldn't give me the login and pass to check it myself). They said the problem must be on my end and that they do not block ports except 66 and 67 or something like that. Connected directly to the modem and still getting this problem, even after several reset attempts on the modem, I can't think of what to do next. I even set it to pickup the network automatically as the modem/router has a dhcp server in it. While it could still connect to the internet all ports still refused connections. I'm stumped. Any help would be appreciated. Thanks.