My problem is as far as I can tell cause by my ISP but I thought I would see what others say. I have HASSIO, with duckdns add-on. My ports are forwarded and my frontend has been accessible from anywhere for the last several months maybe years? Lost track of time. Anyway all was working until my public IP address changed. Duckdns updated the ip but I cannot access the frontend. However I know it is accessed. My home assistant companion app still receives notifications and Alexa still functions using HASSKA. On another note my VPN has also gone down. I can no longer access my network via VPN. As far as I can tell there is nothing in the logs.