I read similar topics, but unfortunately I didn't solve my problem. Laptop running win 10 wi-fi connection. The range is full, the connection to the router also, and yet the internet does not work. Strange, because I also have windows 7 installed on the same laptop and everything works fine there (well, maybe except for downloading files).
HP Pavilion laptop, realteka card, and what exactly I do not know. Now I am restoring the system to its initial settings.
Added after 3 [minutes]:
Only so, there was a problem with the driver for it, I downloaded it from the manufacturer's website, installed it - it works. After restarting, the computer did not work anymore. I used to get a message about a problem with the wifi sensor (the sensor requires attention or something like that). But it only worked on wine 10, when I bought a laptop it was with windows 8 and there was no such message.
I restored the system to the initial settings and I do not know what the internet is about. Maybe the problem was some program or system update, I don't know. I hope it will stay that way. Thanks for your interest in the topic.