OK, so recently , i set up my xbox live, and it's on my local wired network. the network has 1 pc, which is on most of the time, 1 laptop, router , and 360.
But whenever someone else in the house is using the internet, if it's on the laptop or PC, it's slow for them, and will cut me out of games on Xbox Live.

It's fine when there's just one user though. What can i do to fix this? it's so annoying when I'm playing Team Doubles in Halo 3 and i get cut out, then i get bad rep and stuff for leaving the game early!

Any help would be much appreciated.

Thanks!