Apologies, but I don't know much about wi-fi. We have 76mbit fibre broadband, and a great connection to the box on our street, so we get the full speed at the jack in the wall. However, I use an Airport Extreme to create a wi-fi network, and from just a few meters away (with no walls or anything in the way), my download speed is just 40mbit. I've got the last of the big flat Airport Extreme base stations, before Apple changed them to the new cylinder model. The 5Ghz is off, I think, as there is no check box in 5Ghz network name.