I found
this thread over on the Xbox forums. Note someone said someone had the same issue with the Netgear.
Also I looked through
these forums, offically moderated by Xbox, and for every router, they suggest changing the Wireless mode to G only. And I quote:
"The reason we recommend switching to wireless-g only is that for most routers, wireless-g is far more stable than wireless-n. Unless you are streaming HD movies through something like media sharing then you generally don't need wireless-n."
So I wonder if they know something we don't. And I suspect this is more a issue with Xbox 360 S and N connections then it has anything to do Dlink. Not to say the discussion belong here, but I wonder if we should be contacting Microsoft and not Dlink. Thoughts?
Also, 11Mb also happens to be the exact cap of Wifi-b. Not sure if that is related, but 11b seems like a weird cap if it was like a physical problem with the wireless.