I've been trying to sync up my local files from my PC to my Pixel 2 XL so that I can listen to that music on my phone. Problem is, the files just won't sync, at all. I have tried everything. I've put the music into a playlist, set it to "downloaded" on both PC and Pixel, but it just gives me the "Waiting to download" prompt. Both devices are on the same network. I've turned on network discovery. The files just won't sync.