Needed to forward some ports. Logged into my modem, clicked at advanced settings, clicked at port forwarding, aannnd it's a blank page that says this doesn't work anymore, and to do this I need to visit my ISPs website, with a hyperlink to the relevant site... Logged into my ISPs website, clicked at advanced settings, clicked at port forwarding, aannnd it's a blank page that says this doesn't work anymore, and to do this I need to install a phone app Installed the phone app and clicked through and it worked, then my internet crashed. Because of course port forwarding is handled by my modem, and they made this "user friendly" and accomplish this by pushing an update at my modem and force it to reboot. I forget if reboots were required with port forwarding before, but damn, this effort to be user friendly is not.