No internet at Minecraft. Can someone

I've had a problem with Minecraft since yesterday, when I try to log in it always says 'Sorry, make sure you're online.' I had a Wi-Fi usb stick, so I thought that my internet was just too bad and then I exchanged it with a lan cable, because it has a better connection, etc. I tried again, but it still doesn't work.

Simply reinstall the game and I would never use Wi-Fi USB sticks because they often slow down your PC

Are you sure the router is on? This has never happened to me before

Yes, otherwise I couldn't yt or so without Wi-Fi

As I said before, I would simply reinstall Minecraft and completely delete the% Appdata% \. Minecraft einmak folder (before you reinstall mc)