curl will be needed for much of the troubleshootingopenssl will be needed for troubleshootingcurl does not validate SSL certificates like *Arrs do, so openssl needs to be used
Test the connection/site using openssl to see if the certificates are valid
openssl s_client -showcerts -connect <url>:443
curl -sv -6 "http://<url>:<port>/"
netstat -ab
netsh http show urlacl
7878http add urlacl http://*:7878/ sddl=D:(A;;GX;;;S-1-1-0)
sudo netstat -tnlp | grep <:port or app>
8989sudo netstat -tnlp | grep ':8989'
Radarrsudo netstat -tnlp | grep 'Radarr'