
About the protection suite: haven't heard of it, but I'm glad it's not Norton. It may make problems, but shouldn't unless it either scans all network traffic (potentially blocking some) and scanning programs as they run. You should be able to monitor how many resources it is using from the task manager.
About settings: Currently, there is no way around the instant kills in any high rubber and fast turn server. They're unavoidable if ping charity is bigger than the turn delay, and the high rubber makes them visible. 0.2.8.3 will have configurable ping charity on the server side (if all clients support it), so it'll be possible to tune that down so it won't cause any problems. The inequality you'll have to fulfill will be
PING_CHARITY_MAX + 1/SERVER_FPS < CYCLE_DELAY
and of course the server would have to be able to deliver the configured FPS.
If you don't mind that you'll have to replace wall humping (which causes lots of walls to lie almost parallel, which stresses the engine quite a bit and is asking for trouble) by really tight, single pass grinds for sealing, you can try setting
CYCLE_RUBBER_MINADJUST .01
CYCLE_RUBBER_MINDISTANCE_UNPREPARED .02
And of course the best way is to report the bugs you see, which is what you're doing
