I am trying to join someone else's server, and it prints the error "Couldn't establish network communication with server"
0.328 Loading mod core 0.0.0 (data.lua)
0.341 Loading mod base 0.16.51 (data.lua)
0.450 Loading mod base 0.16.51 (data-updates.lua)
0.486 Checksum for core: 840319042
0.486 ...