Pifii, Check the work via WiFi and / or mobile Internet of another carrier. Switch network mode if you use something like "3G only" or other restrictions.
Check the settings of the APN access point (mobile Internet settings) in order to advise your telephone provider to set up the phone. Note the presence of any proxy in the parameters.
Check the conditions of your tariff for cellular communication, whether there are any restrictions on the Internet.
If you use any firewalls on the phone, programs to "save traffic", disable them.
If you use programs for "hacking" games, for example, Freedom, then you also need to disable it.
Post has been editedW.Master - 27.02.19, 14:40