Upgraded from iPhone 11 Pro to iPhone 12 Pro. Verizon Business Account.
My 11 Pro (which was not experiencing this issue) was on iOS 14 but not 14.1, after setup was complete the 12 Pro was on 14.1.
Could be an issue with 14.1, could be an issue with 5G, could be another hardware issue with the 12s, or carriers are dropping the ball somewhere.
I'm a die-hard apple user, I will always buy the newest 'Pro' version of everything (luckily I have no need for a desktop or I'd be selling my left nut for a Mac Pro). I'm a huge advocate for Apple and all of their practices, so this issue is really ******* me off.