My 722 is acting weird. I have it connect to my router, with a reserved dhcp address. If I go into the system menu and reset the network connection, I can connect to it with dish online or the iPhone app, but then I'll try again later (a few hours or so) and it not connect, and I'll have to reset the connection again. This isn't very useful if I want to connect to it and I'm not home to reset it. Any ideas how to keep it connected?