laptop Can't Connect To This Network Error

[DHel]

I had a new white router 4 days ago as my previous black one stopped working and the laptop connection has been dropping since then.

Rebooting everything has restored it temporarily.

Today it dropped and won't reconnect.

I have checked that I'm on WP2

I've restarted hub, router and laptop. Told laptop to forget network and re-entered password but it refuses to connect.

Laptop is running windows 11. Network card drivers are on  the latest version.

WiFi is working on my phone in  the same room.

What can I do?

[caesarome]

@DHel 

When your Windows 11 laptop fails to connect does it throw up an error message and if so what does it say ?

[DHel]

It says Can't Connect To This Network - exactly as in my post.

However, I may have fixed it now by changing the setting from Auto to 20Mhz.

At least it's working for now.