Unable to stream audio to a soundbar using airplay on Safari

Hello,

I have an M2 Max Mac Studio, and a Yamaha ysp-2700 soundbar (which supports airplay). Both are connected to my home network with an ethernet cable.

When viewing YouTube videos on Safari, I click the airplay button, and it recognizes the soundbar, however when I choose it, it continues to output the sound through the mac's speakers. When I choose a different sound system in my house (Denon receiver) which is also connected to the home network via an ethernet cable, it does stream audio to that system.

This led me to believe that maybe there's a problem with the soundbar, however:

1) If I go to system settings and choose the soundbar as my sound output (through airplay), it works well for all of the mac's apps, including Safari.

So the problem only occurs when trying to stream the audio directly from safari to the soundbar.

2) When opening safari on my iPad Pro, I went to Youtube and tried streaming audio to the sound bar through airplay ,and it worked well.

So:

Airplay works well with my soundbar. the problem only occurs when trying to stream audio to the soundbar when I use safari on my Mac Studio.

Can anyone suggest what can I do to fix this issue?

Thanks!