This lag ONLY happens at some maps when all the players spawn, so it seems like there is a problem with the spawningspots - probably the CPU is overchallenged with setting the players spawnspots at a certain amount of players ...
I dont know whats the hardware but maybe reducing the slots or simply removing the maps like jurassicpark which got this problem might help?
Read more on: : i3D.net Game Forums http://forum.i3d.net/showthread.php?t=
I also wonder why the
I3d test servers run on windows server edition, i never got problems with my ZE gameserver when it ran on my debian rootserver - even with more than 40 people ...
But there are probably reasons why you let it run on windows, so my only advice i can give you:
Reduce the slots or remove the maps which got this spawnlag