acaca

I have an issue with my minecraft own forge modded server on my PC When my friend was playing he had a heavy lag and he lost connection with server. When he tried to reconnect to server it failed. A message appear on my server's console "networkdispatcher exception null" or "timed out". If I create a new world my friend is abled to play and i can enter with his profile with my computer. We are the only two player on the server, the connection is stable but not powerful (15-20mbits in download). Last year we played with worse connection but we rarely had problems (but we had vanilla minecraft). Yesterday we had had the same problem but it was resolved automatically. I've arleady tried to add -Dfml.read.Timeout=60 on the start.bat file, but it still doesn't work. PC specifications: Ryzen 7 16GB with GTX1080 (Server and client) and i5 quad-core 8GB with GTX780 (only client) Main mods: Buildcraft, IndustrialCraft, ProjectRed.