This only happens on your server. I get kicked by Ace because it doesn't like my "Botpack.u". So I reboot and the game lets me in for a bit. Then I kicked by Ace for "Engine.u". So I reboot again.
Sometimes it lets me play for a while then in the middle of a game...boom kicked by Ace because it didn't like my "D3DDrv.dll". Then it's "Windrv.dll".
This happened few months ago too. I even reinstalled everything from scratch with my original UT disk and the only files I downloaded were from your server. I have no idea what's going on.
Just remembered.........I patched my fresh install with the 436 patch. Nothing else.