It stops and suddenly after few minutes it is back up and running. I get logs like
This is just a example for notes app, same happens with Jellyfin multiple times a day
ERR ts=1715264259.2358754 logger=http.log.error msg=dial tcp 192.168.1.9:22300: connect: connection refused request={"remote_ip":"192.168.1.223","remote_port":"54210","client_ip":"192.168.1.223","proto":"HTTP/1.1","method":"GET","host":"notes.gharnas.duckdns.org","uri":"/api/share_users","headers":{"Accept-Encoding":["gzip,deflate"],"Connection":["close"],"X-Api-Auth":["p1rN7xiiJ27lvvxJPWZw5A"],"X-Api-Min-Version":["2.6.0"],"Accept":["*/*"],"User-Agent":["node-fetch/1.0 (+https://github.com/bitinn/node-fetch)"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"","server_name":"notes.gharnas.duckdns.org"}} duration=0.001016577 status=502 err_id=ap0fu3m5i err_trace=reverseproxy.statusError (reverseproxy.go:1267)
ERR ts=1715264387.4663417 logger=http.log.error msg=dial tcp 192.168.1.9:22300: connect: connection refused request={"remote_ip":"192.168.1.223","remote_port":"60292","client_ip":"192.168.1.223","proto":"HTTP/3.0","method":"GET","host":"notes.gharnas.duckdns.org","uri":"/","headers":{"Sec-Fetch-Dest":["document"],"Sec-Ch-Ua":["\"Chromium\";v=\"124\", \"Brave\";v=\"124\", \"Not-A.Brand\";v=\"99\""],"Sec-Fetch-Site":["none"],"Sec-Fetch-Mode":["navigate"],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8"],"Accept-Language":["en-US,en;q=0.5"],"Accept-Encoding":["gzip, deflate, br, zstd"],"Priority":["u=0, i"],"Sec-Ch-Ua-Mobile":["?0"],"Sec-Ch-Ua-Platform":["\"Windows\""],"Sec-Fetch-User":["?1"],"Upgrade-Insecure-Requests":["1"],"Sec-Gpc":["1"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h3","server_name":"notes.gharnas.duckdns.org"}} duration=0.000921424 status=502 err_id=m03wt2mas err_trace=reverseproxy.statusError (reverseproxy.go:1267)
ERR ts=1715264389.7886176 logger=http.log.error msg=dial tcp 192.168.1.9:22300: connect: connection refused request={"remote_ip":"192.168.1.223","remote_port":"60292","client_ip":"192.168.1.223","proto":"HTTP/3.0","method":"GET","host":"notes.gharnas.duckdns.org","uri":"/","headers":{"Cache-Control":["max-age=0"],"Sec-Fetch-Dest":["document"],"Accept-Encoding":["gzip, deflate, br, zstd"],"Sec-Ch-Ua-Platform":["\"Windows\""],"Sec-Fetch-User":["?1"],"Priority":["u=0, i"],"Sec-Ch-Ua":["\"Chromium\";v=\"124\", \"Brave\";v=\"124\", \"Not-A.Brand\";v=\"99\""],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36"],"Sec-Gpc":["1"],"Sec-Fetch-Site":["none"],"Sec-Fetch-Mode":["navigate"],"Sec-Ch-Ua-Mobile":["?0"],"Upgrade-Insecure-Requests":["1"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8"],"Accept-Language":["en-US,en;q=0.5"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h3","server_name":"notes.gharnas.duckdns.org"}} duration=0.000846325 status=502 err_id=jyvyzthtj err_trace=reverseproxy.statusError (reverseproxy.go:1267)
ERR ts=1715264408.541373 logger=http.log.error msg=dial tcp 192.168.1.9:22300: connect: connection refused request={"remote_ip":"192.168.1.223","remote_port":"60292","client_ip":"192.168.1.223","proto":"HTTP/3.0","method":"GET","host":"notes.gharnas.duckdns.org","uri":"/","headers":{"Cache-Control":["max-age=0"],"Sec-Ch-Ua-Mobile":["?0"],"Sec-Fetch-Mode":["navigate"],"Accept-Encoding":["gzip, deflate, br, zstd"],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36"],"Sec-Gpc":["1"],"Sec-Fetch-Dest":["document"],"Priority":["u=0, i"],"Sec-Ch-Ua-Platform":["\"Windows\""],"Accept-Language":["en-US,en;q=0.5"],"Sec-Fetch-User":["?1"],"Sec-Ch-Ua":["\"Chromium\";v=\"124\", \"Brave\";v=\"124\", \"Not-A.Brand\";v=\"99\""],"Upgrade-Insecure-Requests":["1"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8"],"Sec-Fetch-Site":["none"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h3","server_name":"notes.gharnas.duckdns.org"}} duration=0.00038693 status=502 err_id=q3b4r5mz9 err_trace=reverseproxy.statusError (reverseproxy.go:1267)
ERR ts=1715264410.9711967 logger=http.log.error msg=dial tcp 192.168.1.9:22300: connect: connection refused request={"remote_ip":"192.168.1.223","remote_port":"60292","client_ip":"192.168.1.223","proto":"HTTP/3.0","method":"GET","host":"notes.gharnas.duckdns.org","uri":"/","headers":{"Upgrade-Insecure-Requests":["1"],"Sec-Fetch-Mode":["navigate"],"Priority":["u=0, i"],"Cache-Control":["no-cache"],"Sec-Ch-Ua-Mobile":["?0"],"Sec-Fetch-User":["?1"],"Accept-Encoding":["gzip, deflate, br, zstd"],"Sec-Ch-Ua":["\"Chromium\";v=\"124\", \"Brave\";v=\"124\", \"Not-A.Brand\";v=\"99\""],"Sec-Gpc":["1"],"Accept-Language":["en-US,en;q=0.5"],"Sec-Fetch-Dest":["document"],"Pragma":["no-cache"],"Sec-Ch-Ua-Platform":["\"Windows\""],"User-Agent":["Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36"],"Accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8"],"Sec-Fetch-Site":["none"]},"tls":{"resumed":false,"version":772,"cipher_suite":4865,"proto":"h3","server_name":"notes.gharnas.duckdns.org"}} duration=0.000973919 status=502 err_id=dsn20u1hd err_trace=reverseproxy.statusError (reverseproxy.go:1267)