I've installed the router using T-Mobile's Nokia "trashcan" as the modem. It works.  Its fast.  Even though I don't understand most of the settings.  HOWEVER, the range is literally 15 feet.  More than 15 feet is iffy, 20 feet is out of the question.  The router is in a central unobscured area.  The specs boast of beam forming for range. I don't think my 2BR 1250 sqft condo should require a range extender to get past 15 feet!  What am I missinterg or doing wrong?  Is this common for modern routers?