Windows 10: Can't connect to WiFi after Windows 10 update WPA-invalid-2/4-key-msg

Discus and support Can't connect to WiFi after Windows 10 update WPA-invalid-2/4-key-msg in Windows 10 Network and Sharing to solve the problem; After our laptops update to Windows 10 v2004 (the May 2020 update), they will no longer connect to our WPA2-Enterprise FortiAP WiFi network. We have... Discussion in 'Windows 10 Network and Sharing' started by vorsoth100, Jul 14, 2020.

  1. Can't connect to WiFi after Windows 10 update WPA-invalid-2/4-key-msg


    After our laptops update to Windows 10 v2004 (the May 2020 update), they will no longer connect to our WPA2-Enterprise FortiAP WiFi network. We have troubleshooted and checked our RADIUS/NPS settings, and they are correct. The users get authenticated, but the connection fails with this message in the FortiGate Logs:

    WPA-invalid-2/4-key-msg
    Probably wrong password entered, invalid MIC in 2/4 message of 4-way handshake from client

    The laptop's event logs report "Dynamic Key exchange did not succeed withing configured time"

    Other laptops still on Windows 10 1909 can connect just fine. And if we roll back the Windows 10 update to 1909, it will connect again. If we take the laptop to our other office with Aruba AP's they connect just fine. So it's something to do with the Windows 10 2004 update and the FortiAP 221E Access Points. We just can't figure out how to fix it.

    Any ideas or suggestions would be greatly appreciated! Thanks!

    :)
     
    vorsoth100, Jul 14, 2020
    #1
  2. legend383 Win User

    "Can't connect to this network."


    I just bought a wifi card for my windows 10 desktop (a tp-link archer t8e) and cannot connect to my network.

    I have the wifi icon on the tray, I can get a list of available networks but after entering the wpa key for my network it just shows the message "Can't connect to this network."

    Network diagnosis just suggested connecting to a wifi network (why didn't I think of that...), does anyone here have any clue as to what the problem could be?

    UPDATE: Just noticed that the wifi adapter is being disabled briefly just after I enter the network password, no idea what's going on.
     
    legend383, Jul 14, 2020
    #2
  3. so051225 Win User
    Reset the WPA pre-shared key of Wifi Connection?

    I use TPlink wireless router as an access point to let my Nokia 5530 connect to internet.



    Now, i had changed the WPA pre-shared key in the router, but i can't change the setting of my phone, so, it always pop up an invalid key message, i can't connect to internet.



    Is there any way to reset the key of a wifi connection?
     
    so051225, Jul 14, 2020
    #3
  4. geo2142 Win User

    Can't connect to WiFi after Windows 10 update WPA-invalid-2/4-key-msg

    5800: Invalid WPA pre-shared key error

    I have the same problem, please help me i can't connect to wireless networks , it says : Invalid WPA preshared key...
     
    geo2142, Jul 14, 2020
    #4
Thema:

Can't connect to WiFi after Windows 10 update WPA-invalid-2/4-key-msg

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