Nice, ok hmm… sounds like you are using the router for internal DNS, did you set all the services to point at caddy?

Eg you could try a quick hack in hosts (assuming the caddy ip is 192.168.10.10)

192.168.10.10 grafana.domain.example
192.168.10.10 prometheus.domain.example
192.168.10.10 jellyfin.domain.example

And then navigate to one of the services over https

Main thing is all your internal DNS records need to point at caddy, and then it forwards to the real container IP

Not strictly required but could be worthwhile to get a dedicated internal dns server up… I use technitium, or there’s pi hole or a few other options …