I have a d-link di-524 with the slowest Bigpond adsl offered. It goes through 1 wall about 5-6m away from my wii. And it does take ages for my wii to update,etc. However, I believe it is the wii itself that is at fault for being slow, not the router, because I also connect to my router from the street, about 25m away with my laptop and its much quicker and says "signal strength excellent".