Every day without failure I go up to my bedroom around midnight and my mobile cannot connect to the sonos system. I have a new Play downstairs that sometimes is available but neither the One in the bedroom or kitchen are visible. I reboot my hub that does not work, I reboot my phone that does not work then for no reason its suddenly all okay.
My phone and the Play are 5ghz and the 2 x One are 2ghz could that be an issue?
I am very technically savvy but this has stumped me