I've recently switched to IWBUMS 39.64.1 for my dedicated server, but now some of my players cannot connect, even though they were able to in the current stable build. The error they receive is :
1527510160159 znet: P2P connection failed: 4
1527510130672 znet: Connection closed: reason=2 port=1
I've tried with a completely unmodded server, same results. I am not sure what else we can try, but anything helpful would be appreciated.
Thanks!