One of the reasons for the lack of an Internet connection may be the exhaustion of the limit if you use a limited Internet connection. Limited may be traffic or connection time. Internet traffic limit The monthly traffic limit is set, as a rule, by mobile operators. Therefore, users of smartphones, tablets and mobile modems may face the problem of the lack of Internet due to the exhaustion of the traffic limit.
In order for the mobile Internet to work in roaming, you need to give permission for this in the settings of the SIM card. A permission to transfer mobile data in roaming is necessary even if you will not be charged extra for this. At the same time, you need to remember that the resolution is set on a specific SIM card, and not on the device as a whole.
Some public Wi-Fi networks require user authorization to receive the Internet. Where is authorization needed? Most often, an authorization request for connecting to the Internet is requested in the following places: McDonald’s. Airports Banks Shopping centers. Sometimes such networks have the status of open networks, and in some cases, you must first enter a password. But in any case, even if you see that your device displays the status “connected to a Wi-Fi network”, authorization is required to get the Internet.