You might want to consider purchasing an inexpensive DAC that has the same inputs as your current DAC for testing purposes. If that DAC is recognized and works with your streamer using the same interface you will know for sure that the issue is with your DAC. You could also try out other types of connections between the DAC and your streamer.
You can buy inexpensive Topping DACS on Amazon and Schiit Audio has inexpensive DAC's. You can either return the DAC that you try it or use it as spare while decide what you are going to do if your current DAC is bad.
It never hurts to have spare equipment around. Good Luck.