I have a new good quality reconditioned HP EliteBook 540 G7 running Win 11, the first time I have used this OS. It initially connected to the internet with no problems. After partially setting it up, I now find that if I enable WIFI it not only won’t connect, but breaks the connection of other computers connected to the router until I toggle off WIFI again on the EliteBook.

I’ve spent too many hours checking and re-checking my internet settings, doing network resets and other tips on the internet, but no improvement. I have also tried restoring Win 11 to an earlier restore point and exiting antivirus/firewall.

Strangely, to me at least, I have managed to get workgroup file and printer setting working fine although to do so I had to enable ‘Enable insecure guest logins’ via edit group policies. Reversing this makes no difference.

I have an Archer-VR400 icon on the network connection screen and double-clicking that takes me to the router interface, but I’m afraid I don’t understand much that I see there, however I can see that the  Elitebook is listed under wireless clients. If instead of using the icon to get to the router I try to connect by typing 192.168.2.1 into my browser address bar, which is the way I usually access the router from my other machines, that doesn’t work.

I wonder if my router  just too old to cope with Windows 11?

Any advice will be very much appreciated.