Summary: If I could give this ZERO starts then I would!!!! Do not waste your time. I installed this and sure it worked, when wanted to broadcast a signal. Note the sarcasm. The only devices that were able to connect were computers. Tablets couldn't connect, nor could my phone. This really was a poorly made device. I should have trusted my gut and purchased a Netgear or an Asus. Heck...even a D-Link would've been more reliable. The interface is terrible as well.
Summary: I had a Comcast router with built in wireless which wouldn't reach the second floor consistently. Got this WAP, plugged it in and was up and running in less than five minutes. Reached the second floor just fine.