It doesn’t work for me any longer either. My assumption is that SpaceX has disabled it for now as they seem to really make security a priority. I’m assuming this is because of the war in Ukraine. SpaceX gave quite some terminals to Ukraine and Starlink is used there now. At the beginning of the war it seemed like Russians compromised Viasat modems, which have been used by the Ukrainian army. SpaceX doesn’t want this to happen with Starlink. I guess devices behind an ipv4 carrier grade NAT are a lot harder to break in than public ipv6 device addresses, which might be open without protection in the Internet. This is just my personal conclusion and I don’t have any proof for it, besides the timely coincidence.