When dealing with wireless signal issues, it's very difficult to get reliable feedback from the user.  Firstly, they resist the notion that anything is wrong with their network, and secondly, we're dealing with a thing that is not only invisible but it's hard to measure even if you know what you're doing.  

So, I propose the following:

 * Create a new option at the bottom of Diagnostics called "WiFi Audio Feedback"

 * When WiFi Audio Feedback is ON, two things can trigger the playing of an audio cue over the speakers or audio outs.  That sound could either be a generated tone or a canned waveform.  It just needs to be audible, distinct, and non-annoying.  The triggers are:

   1. When the WiFi signal drops below a defined threshold (TBD)
   2. When the devices has lost its internet connection.  (can't ping SN.com?) 

This will allow Support to quickly and easily test and prove what issue a user is facing.  Plus because it's audible it can inform the user specifically when and how frequently these events are happening, so they may correlate it to an event or something in their environment.  (example: everything their phone rings they hear a chirp-chirp sound from their Squeezebox.)

This should be implemented for all SqueezePlay-based devices, and if feasible backported to older players as well.