Verizon FIOS and SONOS interference

The BOOST can run either S1 or S2, but not both at the same time. When purchased, I think it comes with S2, you just need to “downgrade” it to use S1. 

If I downgrade it to S1, doesn’t that defeat the purpose of avoiding the interference with the FIOS system? Sorry if I am slow to understand my options.

At the moment it seems the choices are (a) keep the more modern Gen 2 speaker using the S1 app, and sell the old Gen 1’s; (b)  just sell the whole SONOS setup and move on.

Sorry, I’m trying to understand what you’re trying to do here. 

My understanding was that you were trying to keep the three speakers on S1, yet not use your own wifi signal. Adding a BOOST, removing the wifi information from your controller, and making sure that the BOOST is using a SonosNet channel that is at least 5 channels away from your Verizon router would be the best solution. 

In this solution, the Sonos is no longer connected to your wifi (but still connected to your router, just using the SonosNet from the BOOST), and as long as the two channels are separated by 5 channels, would not interfere. There’s always electrical interference if you put a powered device next to a wifi device, but I kind of assuming that your BOOST would be at least 3 feet from your router. 

If my understanding ins’t correct, please let us know. 

Seems too complicated I’m afraid - Wi-Fi interference (which channels vs. which band/ protocol), maybe electrical interference, S1 vs. S2, which network…. 3 ft away from router but not an extender, Boost can support both S1 and S2 or maybe only S1 which is no longer supported and interferes with current WiFi…. 

Verizon is advising I disconnect Sonos - maybe that’s the right answer? 

Nope. Nothing I’ve suggested is even remotely difficult, just would take a few minutes to do. I’d hand this over to my nephew to do, or, if my mother was still alive, over to her. Just needs a bit of care. The more you think about it, the more complex it seems, but it really isn’t. 

Yes. Get rid of Sonos.  Because otherwise you'll be bugging us with questions, and quite frankly, we'd rather help someone who actually wants help.

Or you could buy a Boost, install it, and go on your merry way.  It's just not as complicated as you seem to wish to make it.

I could buy a Boost, but an existing owner selling his said it didn’t work and is trying to sell his for a loss. 

If the real problem is the outdated Gen 1 tech why not say so? An earlier commenter also suggested that Gen 1 was the problem.

Not really interested in throwing more money at this problem. 

Then don’t. As previously suggested, wire one speaker to your router. It functions the same as the BOOST. 

I wouldn’t personally take the word of one existing owner over that of the Sonos community, who are all here to help. Selling second hand tech is always sold ‘at a loss’ so not sure how that’s relevant.

Boosts work well, on S1 and S2.

it appears to me you have 3 choices.

1. Buy a boost - follow Sonos instructions to set up for your system -  10 minutes tops.

2 wire a speaker to the hub - 2 minutes plus time to move speaker!

3 Ditch Sonos - at a loss. Actually there is a market for secondhand Sonos. Unlike most tech I see abandoned at our local recycling centre. 
I hope that helps.