@OP
As already told by many, obviously your issue is streaming from your PC, you need a separate streamer. However you don't need to pay 5k or more for it as many recommend. Take a look at my streaming setup in my system. Not counting the DAC, I have only around 2k in it including cables. And it sounds just great. As good as my vinyl rig and cd player, just a slightly different presentation for each. However I did spend a good sum of money building the proper listening room, so I don't have to buy top of the line equipment or accessories to make up for the shortcomings of the listening environment. Foundation first.