Hey guys I recently joined PM and came across a lot of Oneplus users who were experiencing slow data or it not working at all, including myself.
After digging into countless forums, I found the solution for me was to press & hold on an app > App Info > Data usage > Toggle diasbled data usage to off. Basically, Android sets certain applications to disable data automatically even if your mobile data is turned on in settings.
Hope this helps any others experiencing the same thing.
