No mobile service

Novice II

My pixel 4a kept showing no service in the notification bar at the top of the phone.  Couldn't send or receive texts or make phone calls even on wifi.

Finally I reset all mobile and network settings and everything immediately began to work again.  

Service would show for a few minutes then no service before doing the reset.  

If you have similar issues try resetting mobile and network settings.  At least I didn't have to do a complete phone reset!