No 4G internet when outside

Hello @WendyTi, welcome. Am I correct in understanding that you're unable to use 4G internet? If so, please try our selfservice problem solver. If it still doesn't work after following all the steps, I'd like to have a look behind the scenes. Could you then please update your forum profile adding your phone number, postal code, house number, date of birth, and client number. Then I'll see what I can do for you.