So glad to see these posts as my Qb has been doing this stuttering on BBC Radio 4 for a couple of days and I wondered if my network was at fault. But, although the Qb is wireless, it also happens on the 272 (wired). And, it doesn’t happen if I use Bluetooth from my phone or listen on the Amazon Echo (which seems to piggyback on the new BBC Sounds app.)
Please, please Naim, sort this out asap as we would have to ditch the Qb if we couldn’t use it as a radio (mostly listening to R4).