Xbox no Signal

i agree with Pvt McBagel

Your xbox signal might be getting an tenteriferance with your router. meaning that the signal from your xbox isn't as "clean" of a signal that your router can understand.

the best thing to do to find out if it is your xbox signal is to 1. move your xbox closer to the router and 2. if you have one is get a radio that has AM settings and use it between your xbox and your router the move static noise you get the worst your signal
is.

if it is your xbox signal then just move it(can't express that enough) until the signal is not so "dirty".

Hope this helps

is it possible that there is something interfering with the signal (other electronic devices near the Xbox or the controllers or something blocking the signal (eg; a coffee table between you and the Xbox)?

Are you able to take the Xbox to another room and try it? If not it could also be that there is interference between the Xbox and Routers wireless signal that will cause the drop of signal and disconnects.

Hard reset or cold reset does not work.

OK, unplugging the Kinect, cable box, etc... seems to have brought things back. I don't know why, we'll see if it happens again the next time I shut it off.