No WiFi after upgrading to Windows 10

Windows 10 does not recognise any WiFi hardware after upgrading. I've got a Lenovo Yoga 2.               
 

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Last updated October 23, 2019 Views 50,846 Applies to:
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I had this issue after upgrading to Windows 10 Pro from Windows 8.1 Pro on a Lenovo Yoga 2, 13". The issue seems to be wide spread and has been mentioned on a few threads (see related threads). I have now successfully managed to get my WiFi card working and hopefully one of the solutions below will help.

Solution 1(easiest): switch off your device

This is the easiest and simplest option and does not need rolling back to Windows 8.1 after paintaking hours I realised this was all I needed to do. NOTE* this is not a restart! What you need to do is properly shut down the machine either through Start > Power > Shutdown or a power button on your device. Leave the device off for at least 1 minute. At restart one of three outcomes will be the case:

1.) WiFi works and you're immediately able to use the network (congratulations)

2.) WiFi works, however you cannot join your home network and

3.) WiFi is still not present.

If outcome 2 is the case, your WiFi card (in my case the realtek RTL8723BE) should now appear in the Windows Device Manager and all you need to do is update your driver to the latest Windows 10 drivers from Lenovo (if not the latest 8.1 driver) and restart (hopefully you now have WiFi).

Solution 2: roll back to windows 8.1 and remove interfering software

The most apparent culprit is Cisco VPN software/drivers these seem not to be compatible with Windows 10 and after upgrade are affecting network connectivity. Solutions on how to remove these are in the following thread:

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/windows-did-not-detect-any-networking-hardware/13a38d40-8b03-4bd0-8ea9-f31a4571ed3c

On my system, I had Cisco PEAP, fast and EAP modules that I uninstalled just in case.

Reinstall Windows 10 and after the Install make sure that at some point BEFORE accessing the Internet you switch off the device for at least 1 min. A simple restart during which power is still going, the CPU will not suffice.

Good luck!

To open Device Manager right click the start button and select Device Manager. Your WiFi hardware should be under network adaptors.

Related threads:

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/network-function-down-after-windows-10-upgrade/a829cd71-663c-4865-9f97-103e5db8413c

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/no-wifi-after-upgrading-to-windows-10/0fe70d7d-2385-4fee-8b7a-fddb439fdcc4

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/lenovo-yoga-2-windows-10-does-not-even-see-the/fea1b479-ace4-4b6c-ac4b-7effc91aec4c

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/no-internet-access-after-upgrading-to-windows-10/66685042-ab96-416c-a58c-50d4e02ba962

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/windows-10-network-connections-empty/06bee58a-268e-427a-92b0-3c33553493d6

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/downloaded-windows-10-and-now-have-no-internet/06606a22-8cb9-4a3d-8c02-cd04f0c38a28

http://answers.microsoft.com/en-us/windows/forum/windows_10-networking/no-wifi-option/65e4dae2-7806-442b-8e42-1f563cf218ac

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I FIXED IT !!!!!!

I have uninstalled every VPN software I have had. I have uninstalled TAP 9 driver. It works now and I hope that it works for you :D

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