If you compiled the game and it gave you a connection error, the safest thing is that you have to change the ip in the config.cpp
In the config.cpp file look for this line "The ip can vary depending on the files, but it almost always starts with 192.
if (!strncmp(netip, "192.168", 7)) // ignore if address is starting with 192
{
Then replace the ip with 999.999 "Example"
if (!strncmp(netip, "999.999", 7)) // ignore if address is starting with 192
{
Save and compile again. This should solve your problem, I hope I helped you.