Streaming YouTube through Sonos is Choppy?


Hello, can anyone help me understand why when I stream using SWYH through my Sonos device the Audio is Choppy?
By Choppy I mean there are blank spots, ie; Audio goes silent for about 3 seconds every 5 seconds or so?
this happens with both YouTube and MS Groove Player being played on my MS Surface 3.
Hoping someone can provide some advice?