Hi, looking for a easy to use wifi repeater/ extender to improve reception of my unifi (D-link wifi router). Am looking at the WL556E Aztech - as i want something that I can just plug in to a spare outlet. Do I just plug in & it will boost all the nearby wifi signals, or is there some set up that needs to be done? Other than WL556E, anything else similar (ie, easy to use & can plug into a power outlet) that can use with my unifi router? Please PM