I have noticed that even though the router is in the room I sit my note 3 is much slower on 5 gHz band than 2.4 gHz band. This is frustrating because every other device in the house (10 devices) is connected to 2.4 gHz band since they are further away from router. Theoretically I should get much faster service on the 5 gHz band that is unused by any other device and less prone to interference from other local wifi routers (none close enough to even give 1 bar anyway but they do show up on list so I assume some interference is possible). I have a Linksys ea4500 dual band router. My speed we connected to ether net through router is a little over 50 mbps. My wifi speed on my Motorola Razr Maxx HD is about 20 mbps even though it is upstairs and at the other end of the house. My wife's Ipads are about the same as my note 3 about 8 mbps on 2.4 gHz. On 5 gHz my note 3 only downloads at about 3 mbps although it's upload speed is about 8 mbps. Any suggestions? Xfinity and Linksys customer service are useless.