you can check your connection var terminal on your PC ethernet (192.168.8.233)
Open terminal type
“ping 192.168.8.120” if you get a reply back
“64 bytes from 192.168.8.120: icmp_seq=1 ttl=64 time=3.61 ms”
if reply is like the above the LAN to LAN/Wifi ports are open.

if you are playing online with friends your connection will be LAN to WAN connection & maybe behind a firewall.