Chromecast is a small device so I'm not surprised it contains a small wireless antenna. However, my netbook and phone receive full bars of wireless signal near the TV. The Chromecast is lucky to receive one bar and the signal is insufficient. Anyone else experiencing this? Any tips? Tonight I plan to try the extender but was careful to install my 55" Samsung with all cables in the wall. I really don't want something sticking out of the side. I was able to move the wireless router about 5' closer but it has not helped.