Question: what is the difference between wireless n and ac?
Answer: So AC WiFi is much faster, but its peak speeds are not really the selling point. It's speeds at long range are. First the bad news: 802.11ac WiFi doesn't really reach any further than 802.11n WiFi. In fact 802.11ac uses the 5GHz band while 802.11n uses 5GHz and 2.4GHz.