I have a 4th gen apple extreme, replaced it with a 5th gen, same issues. The 5MHZ setting works great, but the 2.4ghz (which iphone 4 requires) is terrible. It obviously has some interference (baby monitors, cordless phones etc) I tested it with apple tech on the phone, when I go right up to the router I get like 20mbps or something close, once I'm 15 feet away, its down to 3mbps. It drops a lot, etc. Apple said its interference, tried bunch of settings changes etc. Only thing that WORKS is ipad 3 on 5ghz frequency, but that doesn't solve my problem for devices that aren't able to do 5ghz band. Question is: Why did my crappy 25 dollar linksys that I gave away have no issues and these 200 dollar apple routers cant seem to get it right? I'm about to order a linksys or medialink off amazon and see if it goes back to normal, cause its been about 2 years of this crappy on and off service. any thoughts or advice?