Problem in network Windows 11 24h2

Anonymous
2024-10-02T19:40:22+00:00

After updating to the new Windows 11h2, some machines experienced network issues with both cable and Wi-Fi. They connect but don’t get network access and receive an IP address starting with 169…, resulting in no internet or network connection. I updated drivers, firmware, and reset the network settings. The machines’ MAC addresses haven’t changed. Does anyone know what could be causing this?

Windows for home | Windows 11 | Install and upgrade

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  1. Anonymous
    2024-10-07T14:30:14+00:00

    Cara, como mencionei no post acima.

    Resolvi esse problema desativando a opção 43 no escopo DHCP.

    É provável que o roteador da VIVO esteja com essa opção no DHCP Server habilitada. Tenta verificar se tem opções de escopo habilitado no DHCP Server do roteador.

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  2. Anonymous
    2024-10-07T14:47:49+00:00

    But this is the problem, how to request the people who is working at home to access their ISP router, and deactivate the option?

    I see that this solution will work for a few people, but not for a large group......

    It was working perfectly before the upgrade, so there is something different in the 24H2 that must be fixed..

    Another complain - https://answers.microsoft.com/pt-br/windows/forum/windows_11-wintop_connect/windows-11-24h2-wifi-dhcp-n%C3%A3o-conecta-em/437ef88d-c09c-4f74-bab6-f81cb8d0b0a3?messageId=53249649-fa79-4f2a-b77a-37ada90acb90

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  3. Anonymous
    2024-10-07T14:52:09+00:00

    A interface do roteador VIVO é muito simplificada.. só permite habilitar ou desabilitar o DHCP, definir a faixa de IP's a serem usados e "fixar" IP's para uma lista de MAC ADDRESS. Estranho que foi algo introduzido no 24H2, porque antes de atualizar, estava tudo funcionando muito bem.

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  4. Anonymous
    2024-10-07T15:43:13+00:00

    Cara, como mencionei no post acima.

    Resolvi esse problema desativando a opção 43 no escopo DHCP.

    Image

    É provável que o roteador da VIVO esteja com essa opção no DHCP Server habilitada. Tenta verificar se tem opções de escopo habilitado no DHCP Server do roteador.

    To be clear. Our computers don't even have Wifi and/or Ethernet icons so impossible to contact any DHCP server. When you click on network icon we have no wifi available and no SSID available. So is not a DHCP problem.

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  5. Anonymous
    2024-10-07T15:54:32+00:00

    I have the exact same issue. No wifi in the system tray, device manager shows the wifi adapter is enabled but control panel shows it as disabled. If you enable from control panel, nothing happens. If you disable in device manager and then enable it in device manager, control panel then shows it enabled. However, if you refresh the control panel window - it had immediately disabled it. Can't run troubleshooter because it just tries to troubleshoot ethernet. I, too tried a full network reset after going through control panel and device manager.

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