A Sonos Beam can't be installed while Humax is connected to the same Samsung smart HDR TV. Install works fine if the Humax is temporarily disconnected but the link is broken whenever the TV is turned off and on again. Seems the Humax is sending CEC messages which the Sonos doesn't like. It copes with the TV CEC messages. A simple solution which seems to work so far is to use an HDMI "CEC LESS" adapter which just disconnects the CEC pin 13. Eg the one from Lindy.
