I'm not sure whether this is too late for an answer. But mine is connected via optical cable. It suddenly started doing the same thing. Slightly different models. But really hope this works for you all... 😔

Once Universal Remote is setup and everything is SWITCHED ON, do the steps below:

- Check whether ANYNET is OFF on the soundbar (the button is on the bottom right next to WOOFER button on the soundbar remote).

- Switch off everything using appropriate remotes.

- Switch on the TV using the universal remote.

- It worked for me.

GOOD LUCK GUYS!!!