I received the Oreo update yesterday and installed it. As it is done on wifi I did not notice any problem at first. But after a few hours I noticed I can't access Internet if I'm not connected on wifi despite the 4G logo displayed on the screen headline. I can make call and receive SMS. I've checked the status of the network and no problem is reported by the network provider. I've checked the phone settings and all seems to be properly adjusted.
Any idea to help me?