Why does my S7 edge keep disconnecting from my mobile network?

[AC Question]

Everyday I have to restart my phone in order for my mobile network to reconnect. It keeps disconnecting, or so it says. But my bars on top of the screen say I am connected, but I can't send or receive text messages, I can't connect to the internet or anything that uses the mobile network while I'm not connected to WiFi. This is getting really frustrating. And I've been through three phones and they are all the same.

 

[Tim1954]

Well, if you've been through three phones, then maybe look elsewhere. Is it the same sim? If not, you may need to chat to the network people...