Windows 10: After windows 11 upgrade laptop won't connect to wifi router

For the last few months my laptop running windows 10 would fail to connect to my router. On these occasions I could roll back to a previous wifi driver in device manager and it would immediately reconnect.Today I have upgraded to windows 11, and now the laptop will not connect to the wifi at all.Other, older laptops, various phones and other devices are all connecting to the wifi without issue.I can hotspot from my phone, and the laptop will connect to that without any issues. It will not however connect to the router wifi.I have reset the network adapter, installed the oldest wifi driver avai

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Cannot connect to wifi after upgrade to Windows 10

I had always expected a few glitches after doing an in-place upgrade from Win7 to Win10 (v21H1) on my Samsung RF511 laptop (which is a few years old but in theory capable of handling Win10). After sluggish boot-up and touchpad issues (raised in separate posts), this one is about wifi connection.

The problem is simple. No wifi. Ethernet (which uses a Realtek adapter) works fine, so my internet connection as such is good. When trying to make a wireless connection, the laptop running Win 10 "sees" the wifi link. The router is a Netgear, again not the latest model. It has WPA password-key protection. But running Win10 now, the laptop "can't connect".

The laptop has a Broadcom 802.11n network adapter. With Win7 before the upgrade, the wifi connection worked fine. When dual-booted into Linux Mint on the same machine, the wifi connection still works fine. This suggests that both the Netgear router and the Broadcom adapter hardware are operating properly. The only thing that has changed is the upgrade to Win 10.

I have run the Win10 wifi troubleshooter. I've done the standard steps it asks (switch the router off and on again...). It says there is a problem.... but offers no suggestions for how to solve it.

I have looked at the network adapter properties/drivers. The driver is v.5.100.82.95 which appears to date from 2011. It is said to be working properly. Windows Updates offers no more recent version, and trying 'update driver' in Device Manager brings the message that the installed driver is the right or best one.

The Broadcom support website is hopeless, but I did find, download and install a more recent driver - v.7.5.340.0 dated 2015. No solution - the wifi still will not connect.

A laptop that can only connect via ethernet hard-wiring is not very useful. So what else can I try in order to get a wifi connection?

 

At my wits end with WiFi

I did the sme, with the WAP, i disabled DHCP, and assigned a static IP (192.168.1.2), the adsl router already has a static ip set. i followed th guide here: http://www.dd-wrt.com/wiki/index.php/Wireless_Access_Point to a T, both with and without the reccommended/optional steps.

Still no joy, and i still can't get my desktop to see the wifi router, wth default settings and a direct connection. My laptop views the wifi router fine, with default settings.

Ok i figured i missed a step when changing to the DD-WRT firmware. I didn;t upgrade to the latest version. i'm doing that now, and i'll try to set it up again.