Cannot connect Sonos one SL
We have had three Sonos products on one system but recently the Sonos One SL disappeared from the system for no apparent reason. We have tried to re-add it to the system by resetting the factory settings. The app says it recognizes the product and has added it to our system; it also says that the product may not appear initially and, if so, to un-plug the product then turn it back on again to complete set up. I have done that several times but the product is still not appearing on the system with the other products. I have also rebooted my wi-fi but that has made no difference.
What can I do?
