Free Flash Drivers

so after i finished installing CM13 on my sgs3 i9300 my wifi works fine, i can sent/receive messages calls work just fine i can call and receive calls but when i try to use internet outside the house i dont have any network.

about the phone:
Model:
GT-I9300
Android-Version:
6.0.1
CyanogenMod-Version:
13.0-20160722-NIGHTLY-i9300
Smallbandversion:
I9300XXELLA
Kernel-Version:
3.0.101-CM-g29bb56e

this is what i have about the phone i dont have a vpn connection with my provider and when i try to look for the settings its all greyed out http://ift.tt/2aiiGXV

any ideas?

NOTE: its in dutch