Same issue, lags, disconnects, overload warning messages
Server is just cleanly built and installed, everything is upto date
hardware is not the issue
Xeon 5430, 8 gb ram, only 3 users that try and play on server(me and 2 of my sons so far) all client computers are connected via GigE or 2xGigE,
Server I have tried with Network both teaming enabled and disabled made no diffrence
log file from my family's dedicated minecraft server