Win7, access to the WiFi network of a cell phone, writes (and by the "icon" in the taskbar, you can also see) "Internet access", but in fact there is none. Does Win have a new policy?

Question

WiFi

Win7, access to the WiFi network of a cell phone, writes (and by the "icon" in the taskbar, also visible) "Internet access", but in fact there is none. Does Win have a new policy?
Moreover, immediately after the “disappearance” of the “wired” Internet, I received Internet from my smartphone for another half an hour, after rebooting the phone, everything, as I described, even the anti-virus gave an update error, I went to any sites, it’s useless. On the TF itself, everything via the Internet worked fine. Naturally, he took all measures: he switched adapters, etc. I have been observing this for half a year already. There were also no informational messages from either Windows or antivirus.

Answer 1

You probably have a mobile Internet tariff for phones and tablets that does not involve distribution.
The mobile operator simply blocks access to the Internet from the left devices.