Maybe wireless interference; e.g., 2.4Ghz cordless phone or another network on the same or close channel. Try other channel(s). In North America the non interfering channels are 1, 6 and 11.
Your ipconfig show that you are communicating with the router. And you did get to at least one web site, right?
Your ipconfig show that you are communicating with the router. And you did get to at least one web site, right?