Upgraded wifi to a Arris cable router (SB8200) and three Deco M4's.
One switch still following schedule. All four switches and one bulb are offline and not recognized to reconnect.
Sonoff Basic switches and a Kasa bulb.
Previously, I has an Arris cable router and wifi combined unit (rented from cable provider). All other parts of the system are working.
I can manually switch the devices on and off.
I deleted two of the switches to ro through the original process to connect. All fail.