lan.third.lvldomain.io, but connect fine using the numerical IP 192.168.xxx.xxx (the xxx.xxx changes every reboot unfortunately so my LAN IP is put through DDNS). The strange part is on the domain, while the connection fails, the MOTD and ping successfully show, indicating that the domain works and has the correct A record (this can be confirmed with all other services on my server like SSH, HTTPS, etc)