no Dolby Atmos after connecting with Cisco 2960
I used Samsung HWN950 and it can display Dolby Atmos well from appleTV 4K. Days ago, I was told that the video and audio quality will be improved if I put a Cisco 2960G switch between Reuter and apple TV 4K. I tried the connection it did show a great improvement in both video and audio quality. However, after this change in connection, the Dolby Atmos from Netflix and Itune movie was lost. May somebody help me in this issue? Thank you in advance.