Laptop does not indicate wlan nets?

I have just deleted everything from my laptop and made a fresh installation and now I no longer WLAN networks are displayed. Sometimes mine then appears and when I try to connect, it says that the internet is not available and I should try again later - but somehow nothing works for a long time. It is certainly on the laptop because all other devices work. What should I do?

You mean WLA networks?

Go to sleep. You do not need a network for that.
And tomorrow you will do that.