I have two Premiere Tivos circa 2011 and 2013. Both have had Tivo Wireless G USB Network Adapters communicating between themselves and the router to receive guide information since connection. Today I noticed that both adapters had become stuck e.g. melted to the surface they were on. One was on a TiVo box and the other was sitting on a wooden bookcase. I am assuming that they should be replaced. Has anyone seen this happen and what was your outcome? thanks