Got the new Pixel 2 XL the other day. Plugged it into my Sync 3 to use Android Auto and it randomly disconnects itself. Went to Android forums and discovered this is an issue with Android Oreo and the type C connectors. Android and Google are working on fixes, but the most recent advice was to use a different cord, under 6'. I went to Fry's and bought a cheap 3' cord for $5.99. Problem solved.