HR24-500 Internet Connection - DirecTV

My HR24-500 HDDVR receiver was connected until recently wirelessly to the internet via a Linksys WGA600N adapter. For the past several months the Linksys will no longer will connect the receiver to the internet (have not changed any settings and reset does not solve problem). I do not have whole home DVR and am not using WiFi to connect my other HD receivers to the internet. They are wired directly and the connection works fine. Am wondering if the Linksys adapter is no longer an option and if I should use DirecTV's cinema connection kit instead?

This question, "HR24-500 Internet Connection," is about DirecTV channels, programming, equipment, and sports.