Absolute_AxoltlRemote access suddenly stopped working
I had this happen to me too. For some reason, my Plex tunnel kept working for a little longer after my ISP enabled CG-NAT. Sometimes you can contact your ISP for a static IP but the solution to this is to use a tunnel of some sort, like a Cloudflare tunnel or Tailscale or a NGINX reverse proxy on a VPS provider like Hetzner or IBM Cloud or AWS Lightsail.
I can get a static ip but it’s £8 a month. I could tolerate it but I’ve been with this isp for I think a year now and it’s been using CG-NAT the whole time. It has been working the whole time! This is what is driving me nuts, it has been working with no issues for a long time and suddenly it doesn’t.