I have a PN50C7000 that I got in Aug '10. I have the Samsung wireless link WIS09ABGN and everything worked fine with my wireless router from Veriozon Fios. However, recently it stopped working. The tv can see my router but will not connect to it. I also have a Samsung blu-ray, don't know the model number and too lazy to walk over and get it, and the wireless adapter works in it with no problem. I also plugged the tv directly into the router via a cat5 cable and had no problem connecting.