I'm not familiar with your linksys, but I have the linksys wrt64g (I think), but either way, had NO issues connecting mine. I've got the mac address filter turned on, you just have to figure out where thats at on your DS and go from there if you have that turned on.
my buddy has been having issues with his... he can see it connect etc and then it dosen't work?
either way, good luck.