note 9 3G setup failure

[almaqrami]

I just updated my note 9 to Android pie. after that I can't setup 3G by any means.
what is the new mode to setup 3G in Android pie unlike the previous android 8.
I tried to setup 3G like previous versions but all are failed.

My note 9 dual sim. one sim 2G functioning well.
But the second sim can't work 3G data connection.

 

[B. Diddy]

Welcome to Android Central! Which carrier are you using? Are you certain the APN settings are correct for that carrier?