When I initially bought this item, I thought it was amazing. I was going to use this for travel and attach it to my 4K TV when at home. I possess the Samsung HW-N950 Harmon/Kardon sound system. It is a sound bar, with additional speakers, that can produce 7.1.4 surround sound and is capable of decoding every sound format out there. DTS/DCA, DTS-HD MA, Dolby Atmos, and of course TrueHD and standard audio formats. The sound system has HDCP 2.2 4K HDR/Dolby vision passthru support. In other words, it takes the audio and passes the video on to the TV. I found it to be an excellent match to the Roku Streaming Stick+ as it's able to pass all of the through. Here's where the problems start to come.
When playing Netflix or Amazon Prime, content providers that enforce content streaming protection with HDCP, when playing anything that has true surround sound, I can only watch one episode, or movie, before the sound drops. When the sound is gone, all of Roku is silent. Until I either reboot Roku or reset the HDMI connection, while NOT streaming a video from Netflix or Amazon will it come back. If I reset the connection while I'm streaming, I will get an HDCP 2.2 compliance error for about 3 seconds before it disappears. My TV is HDCP 2.2 compliant.
So, I now have a sound issue. It must either be the sound bar, or the Roku. Except that when I play 4K content with DTS-HD MA audio on my Plex server, my sound will never drop. So I start to connect other devices including an older Roku, and they all work fine. Playing Netflix on an Apple TV, playing Netflix on old Roku 3, no issues. So with the error message I get and the issue with the 4K Roku, I deduce that it's having issues detecting HDCP 2.2 compliance through the sound bar. So I contact Roku, and after sending me through the standard troubleshooting steps try to explain to them that they have a firmware issue. Of course I get the response, it can't be a firmware issue because it's up to date. What? So after a lot of hassle, they forced a replacement unit on me, and unsurprisingly it didn't work either. So now they push blame on Samsung. For good measure I contacted them, but they have never had anyone complain about sound dropouts with that device as it's able to decode every sound format out there. They will be coming to take a look at it just to be sure. I wish Roku was like that but they adamantly refuse to acknowledge the possibility that this is an issue with the Roku's firmware. They chalk it up to incompatibility with the sound bar. I must have missed that section in their product description. Absolutely not happy with this product and their service. I will be going with a different company.