It used to work perfectly but now suddenly it no longer worked.
I can connect the laptop to the Ethernet but not to the WLAN.
Other devices such as cell phones have no problem logging into the WLAN.
The only thing on the laptop is: no connection to the network possible.
Have you ever tried to delete the Wi-Fi from your laptop and then reconnect it?
Ignore with this Wi-Fi? Then yes. : /
Some have a small switch on the side to turn them on and off.
The older models, anyway.
Mine doesn't have that as far as I can see.
The frequency maybe changed to 5Ghz-2.4. Then they don't come in.
What do you mean? 😅
The router transmits with these frequencies like the other devices such as cell phones and laptops. If, for example, this was changed on the laptop by another OS, they can no longer work together.
Router and laptop already restarted! I would try first.
Otherwise, the WLAN is active, otherwise it would not display this message. However, this WLAN connection (IP configuration, DNS server) has gotten messy.
In such a case the simplest solution is to delete the WLAN profile in Windows (Microsoft calls it "Don't save"; a very stupid term for this purpose).
Here is exactly how to do it:
https://www.it-administrator.de/themen/server_client/203844.html
then:
IMPORTANT, shut down and restart Windows.
Now reconnect to your WLAN, it should work again.
PS:
If it doesn't work, follow this step by step guide from Microsoft:
(Especially the paragraph "Executing network commands" might help)
Oh okay and what do you do then?
You can turn off the connection. A key on the notebook e.g.
That's something very simple.
Look in the settings of the laptop and the router to what the send.