Tank you Alex, yes I am struggling to understand how if my speakers and
my source of music (cellphone or pc) or my switches and lights are all
connected to an internal WiFi network there is a need for the network to
have an active internet connection...
Thanks Nikki for your response. The router is in the same room and never
showed problems when internet was up. I tried rebooting the router (as
always seems to be the solution) but did not think about rebooting the
lights and/or speakers since it wou...