Wi-Fi is turned off on a laptop, and without access to the Internet
Answer:
Good afternoon. The problem is clear in principle, except that it turns out that Wi-Fi is not lost, the network itself is there, devices are connected to it, just the Internet does not work. Without access to the Internet.
Have you tried turning the router off and on when the Internet is no longer working? Simply, when the connection to Wi-Fi is there, but the Internet does not work, it means that the router is not connected to the Internet provider. But for what reason it does not connect, it is already difficult to say, there are many options: problems at the provider, a failure in the router itself, router settings fly off, etc.
If the master who came to configure the router told you the reason, then perhaps I could advise something specific to your problem.