Hi allanpaz146,
Good day.
Do you mean your mobile data disconnect but SIM strength works well?
Does the internet get back automatically after disconnect?
Here're some tips as below for your reference.
(1.) Please turn on " Air Plan mode" and off.
(2.) Please disable and enable SIM card.
(3.) Reset the network settings. (settings>system>reset options> reset wifi, mobile & Bluetooth)
Thank you.