From Devialet Tech Support: How Phantom, Dialog & Wifi Router communicate

[snbeall]

So, to be clear, I’m sure you must need the cable modem but then simply connect by WAN from it to your Eero to do the WiFi and Routing? I’m curious... are you able to turn off the WiFi function in the cable modem/router? And did you? I would think that might be important/necessary? Also, how many Eero extenders are you using? If any? Seems like the base unit provides pretty good coverage alone. I have a 2300 sq foot single level urban condo and with it centrally located it seems that should be enough...?