Can't logon to mobile network

[Jack Edmunds]

Galaxy S7, when I first turn the phone on, it is not connected to the mobile network. I make a call by just entering one number and press the dial button and as soon it rings, I am connected to the network and will be until I turn the phone off and then back on.

 

[Rukbat]

Talk to your carrier. There could be something wrong with your account provisioning (the way it's set up).