Thanks for all your input. I think I've straightened out my network problem. Ethernet cable direct from an ethernet plug in the fiber hub. Looking at ll the complaints in the forum you forwarded to me (thank you) I think it's Qobux. I'll pay attention to when it skips. It doesn't seem to on shorter songs, but more on long classical pieces.
BTW, I'm listening to Lizz Wright a fortyish jazz singer whom I must have discovered in her twenties. I've had CDs of hers forever. "Holding Space" is a knock-out live album made in Berlin. Sonics are great.

