I see similar questions have been posted int the past but I dont see any actual solution?  

My system worked perfectly fine for a couple of weeks then, my devises struggle to reconginze each other, the TV always disconnects from the Arc after powering down.

My setup:

Samsung Q-LED TV

Sonos ARC and Sub

Apple TV

I’ve confirmed:

ANynet is on

HDMI e-ARC on on auto

Ive tried:

Completey resetting both devises and setting up again (without any other devise connected)

tried the (NON e-ARC) HDMI slot

Spent hours on the phone with Sonos and Samsung support

Installing a CEC blocker on the Apple TV line

Would really appreciate any solutions to this super frustrating issue