connect to tv sound

Make sure there are no caps on the ends of the optical cable.  Make sure optical output is turned on in the TV settings. 

Yes caps off tv shows optical sound fluctuating but no sound out of ray. 

Is the light on the Ray white or green?

(also optical cables need a firmer push than you’d think, within reason, so that it clicks in place, and must be 100% lined up when pushing them in as they can only go in one way.)

No light on ray. Music plays thru sonus app on phone.

Have tried all that pushed home firm and hard. Can I use different cable method eg USB to optical .

Do you have a CD player or other optical output device you could try as an input to the Ray?

No sadly .bit stuck here sound comes out from tv speakers and headphones just not optical setting although shows sound on tv moving.

Maybe if you give us the TV model someone will have a suggestion.

Samsung 55 inch oled tv been looking at sound settings . Even tried new optical lead.

Which model tv? 55 inch is a size; oled is a screen display technology. 
 

It’s more likely to be a speaker setting than sound. 
 

Also make sure you’ve set TV Autoplay, or else selected tv as the source for the room.