I have a java built web host uses the Synchronet bbs. so, I go got a name Https://www.thealienzonebbs.org and got the website running.. 6 months. had a day ago when the internet just went out. Spectrum gave me service. I had a new IP, and the router seeing a third device on my wifi.. with a different ip. I go on chatGPT and walk thru steps, and it worked fine.. ran in my browser hours. I wake up today, and it wont load.
So it's just a normal website setup. 522 is basically that Cloudflare is sending a request to your website and getting nothing back.
This could be because: Your "java built web host" is not online/running Your IP changed again Your port forwarding broke (local device's ip failed, configuration became undone, etc). iirc Spectrum makes you use their app for port forwarding on new routers Firewall is blocking (router, on device, etc), etc.
Tunnels are way less complex to maintain, but it'd be worth checking the items listed above, if it's a simple ip rotation/your web server isn't running, those would be easy fixes
okay - using netstat and chatgpt, I was able to find out that Test-NetConnection -ComputerName 66.188.64.36 -Port 80 Failed. I break down and called the isp amd they do nothing, but I am assured nothing to their knowledge blocks Cloudflare. And they understand Ddns. Great! so, I chech the website with Chrome. There it is.