Ihave this setup, I am using google domains with CNAME's setup there. I can access using my custom hostnames remotely, but when I am connected to the local network things intermittently do not work. Overseer gives a "you are offline" error, radarr and sonarr gives a "site cannot be reached" Acessing locally via IP adress works perfectly, so does connecting via phone with hostnames. However as soon as I connect to local network I can no longer access from that device using the host name.
Any ideas where I should start?