I know this question has been asked to death, but I've tried my best to troubleshoot and nothing seems to work. Been on the phone with Xfinity for over 5 hours and have been passed from one incredibly unhelpful customer support staff to another with no one really understanding what port forwarding is or how it works. Some asked me to just continuously delete and add the same port forwards while others even mistook port forwarding for call forwarding!
I'm trying to set up port forwarding for my Mac Mini. I'm using the default modem / router provided by Xfinity (Technicolor CGM4140COM) and have added a port for it on xfinity.com/myxfi.
Problem is, the port is still closed when I test it by:
Things I've already tried:
Did you ever figure this out? I've been beating my head against the wall for 12 hours trying to get it to actually forward ports. What is it doing when it says, "Just a moment," and makes me wait for 20 seconds? This is so maddening.