

I don’t know, but I expect it’s having an issue because i assume the port is forwarded from your router to your caddy, but then the caddy server it redirecting back to the router. I don’t know how you’d get around this. but that might be a starting point for your research.
ETA: Also, it’s a bad idea to expose your consumer grade router to the internet. VERY bad idea.
no worries. Just wanted to warn you in case you didn’t know. :)