I recently purchased a Bravia KD65XG9505 TV and paired it with Sony HT-ZF9 soundbar.

All was going well for about 2 months. Suddenly, every-so-often – almost once every viewing of something, the bass totally drops off for a few seconds and all I hear is the treble from the soundbar.

It does not matter if it is on TiVo, Netflix/Amazon… or even if it is my Xbox, now and then the bass totally drops for a few seconds, maybe 10-30 seconds. It does automatically picks up.

The light on the sub stays green when this happens and the sound is definitely coming via the soundbar at the time, but no bass at all. There is a clear change in the sound.

I have changed the 4k compatible HDMI cable and the problem still persists.

I am unable to find anything similar here on the board or online. Does anyone have any suggestions? Is my bar/sub faulty?

I do have a Linksys Velop Mesh node sitting on top of the sub, but it has always been there from day one and the issue only started a couple of weeks ago.

Any advice/assistance will be much appreciated.

Thanks,

Arun