I'm just using a cheap belkin router after my other one packed up,
iv got virgin too jowna and i have the same 4mb as u but when my friend brought round his 360 it worked nicely with my netgear router its a mimo router its the wpn824 v2. it costs 100 quid but i got it for 50 because i said my old router was fudgeed when actualy it was fine it jus wernt reaching upstairs. so u could try and get my router
Well I'm planning on going to PC world and swapping my router for a new one of the same make.