I've been thinking the same regarding the recent update causing the
problem. I don't think that we should need to connect our PC or phone
through Bluetooth or Cast separately then using the actual option that's
built into the browser! That's what it'...
Same problem with me this morning when I try to cast audio from a radio
website to my speaker. I'm wondering if the latest Chrome update is
causing the problem? Rebooting the PC and cutting power/rebooting the
speaker doesn't help