Laptop no longer finds Wi-Fi? Network adapter not working?

Gr
1

For a long time, my laptop has not found Wi-Fi anymore, but I also can't solve the problem or diagnose the problem.

what can I do that I find WLAN again or that WLAN is found?

oy

On the laptop with the F-keys, the Wi-Fi is switched off, or is there a separate switch for Wi-Fi?
What does the taskbar show by the network icon?

Which laptop to help further?