Took delivery this week of new M3LR. Premium connectivity not working which is rather annoying.
Do you have no premium connectivity or no cellular connectivity at all? Can you use Spotify or see traffic on the map (once you select that option on) when your car is stationary and connected to your (home) Wifi?
The reason I am asking is I picked up my new LR about 10 days ago and it had a non-activated (or otherwise faulty) Telstra SIM in it, which the mobile service person was able to swap out for me and it had then worked perfectly. He said he had seen a number like that but wasn’t sure if they were faulty SIMs or not activated correctly or what, but the replacement he put into my car worked immediately.
This is what the signal strength looked like with the dud SIM in my car (greyed-out bars and a diagonal slash across them):
What I did as a workaround until the mobile service visit was to use the hotspot on my phone to allow the car to connect via Wifi. Note you have to re-enable wifi (from the dropdown menu when you tap on the cellular/wifi icon) every time you select R or D, but other than that it meant I could still use live traffic, Spotify, etc while driving.