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I have a Samsung UN60TU690TF. When I connect the optical cord and change the setting on the tv to optical it is not working. I have tried multiple times to do this and when I try to connect to tv on the Sonos app it continues to load/buffer until it tells me it is unable to connect. I have changed the default audio output to PCM and it is still not working. I’m looking for any advice on how I can connect my Ray to my tv. 

There are some things to try mentioned here…

https://goodhomeautomation.com/samsung-tv-optical-out-not-working/

I would also ensure the Samsung TV software is fully up-to-date too. 


Confirmed I am using an optical cable and the caps are off the ends of the cable. 


Are you using a new optical cable?  If so, check the very tips of the ends for caps.  They are often very small and easy to miss.  Like this: