@haffle - just checked & yes its still broadcasting. Although its also provided with a wired connection as our property has loads of metal (vs timber) strut work - which has caused issues elsewhere.
The installers said the PW2 (actually the comms unit in the backup box) has no problem working with wifi & hardwired LAN both active - although if it did have, stopping it and restarting it usually had the desired effect (and you could also go into the wizard at its IP address & reset thing from there). Not had a need to yet.
Way off topic, but had my first experience of Tesla support after the PW2 didnt seem to switch from “Self Consumption” to “Advanced Time Based Control” as set via the app. Not quite the premium service I was anticipating!