CR100 won't connect, but iPad, ZP80, ZP100 are connected and working a-ok!!

Everything used to work perfectly….Then it all stopped working…so, started by rebooting my router.

I then hard-wired ZP80 and ZP100 via Ethernet to get them to connect.  SUCCESS! I can now control them both on my WiFi network from my iPad SONOS app.  That's all good!

HOWEVER, I cannot get the CR100 to associate with the ZP80 or the ZP100.  

How can I get the CR100 to re-join the party?

I've tried putting both ZP80 and ZP100 into the paring mode (pressing MUTE and VOL-UP)…and they both blink amber…but the CR100 just stares back at me, and eventually times-out.  

When it times out, after a few minutes, it says that no SONOS components are present, but I know better…and so does my iPad, which has no problem controlling both units.

I've also tried resetting the CP100 by pressing the following sequence:

<left soft button>
<middle soft button>
<mute button>
<middle soft button>
<back button>
..then scrolling down to "Turn Off CR"
..and pressing the Enter button

Once I put the CR100 in the dock, and it reboots, I try to pair it again…but no love.

Thanks.

BTW, see 4195270 diagnostics…which probably won't help, given that the ZP80, ZP100 and iPad are working just fine.  It's the CR100 that can't see the other units, so it's likely not going show up in the diagnostic report, either.