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- Wi-Fi Card: Intel(R) Wi-Fi 6E AX210 160MHz
- Operating System: Windows 11 Pro, Version 25H2 (OS Build 26200.6725)
- Router Model: ZTE ZXHN F670L (GPON ONT)
- Clean Driver Installation:
- Uninstalled the device and completely removed the old driver software (both the generic Microsoft driver ver. 22.0.1.5 and the latest Intel driver).
- Performed a clean installation of the latest official Intel Wi-Fi driver (ver. 23.160.0.4).
- Network Stack Reset:
- Executed a full network reset via the Windows Settings menu ("Network Reset").
- Manually reset the network stack using CMD with administrator rights (netsh winsock reset, netsh int ip reset, ipconfig /flushdns).
- Advanced Driver Settings:
- Tested multiple configurations for the AX210 adapter's advanced settings, including MIMO Power Save Mode, Preferred Band, Roaming Aggressiveness, and Channel Width.
- Driver Downgrade Attempts:
- Attempted to downgrade to a previous stable driver version. The Intel PROSet installer blocked this with the error "A newer version of the product is already installed."
- We even force-deleted the driver package (oem7.inf) from the Windows DriverStore using pnputil, but Windows aggressively reinstalled a generic driver, still blocking the downgrade.
- Router Troubleshooting:
- Rebooted the router.
- Checked for firmware updates (none available from the ISP).
\Thank you for your time and support.
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Hello Gregory092,
Thank you for posting on Intel Community Forum. The details that you shared is much appreciated and the troubleshooting steps that you have taken is crucial with addressing the connectivity issue that you are facing after the Windows update. To investigate further, kindly share the information below.
1. Is this the original adapter that came pre-installed in your system, or have you changed/installed a new adapter recently?
2. Is this a laptop or desktop system?
3. Is this issue happening at home, office environment or both?
4. What speeds were you getting before vs. after the update?
5. Are other devices on the same network experiencing issues?
6. Have you tried to roll back to the previous Windows version 24H2 for testing?
Additionally, to have a better understanding of your system configuration and components please generate a complete copy of the System Support Utility (SSU) report. Please follow instructions here and send the report - How to get the Intel® System Support Utility Logs on Windows*
I look forward to your response.
Best regards
Jed G.
Intel Customer Support Technician
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1. Este é o adaptador original que veio pré-instalado em seu sistema ou você alterou/instalou um novo adaptador recentemente?
R. Instalei o adaptador a um tempo atrás.
2. Este é um sistema de laptop ou desktop?
R. Desktop
3. Esse problema está acontecendo em casa, no ambiente de escritório ou em ambos?
R. Em casa. Testei roteando a internet do meu celular, porém a velocidade da operadora é baixa sendo impossível tirar uma conclusão. Vou tentar fazer o teste em uma outra rede.
4. Quais velocidades você estava obtendo antes vs. depois da atualização?
R. Em média 2.4 Ghz uma pouco acima de 100 Mbps / 35 Mpbs e na 5 Ghz ficava entre 350 a 490 Mbps / Não consigo fazer o teste conectado no 5 Ghz após atualização.
5. Outros dispositivos na mesma rede estão com problemas?
R. Não, somente o desktop.
6. Você já tentou reverter para a versão anterior do Windows 24H2 para teste?
R. Ainda não fiz a tentativa.
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Hello Gregory092,
Thank you for sharing all this information.
Please be informed that I can only support you in English. I have used a web translation tool to translate this response hence, there may be some inaccurate translation.
Since the adapter was just installed, I would like to share that before you install/change the Intel® Wireless Adapter in a system, you must contact the system manufacturer to determine if the Intel® Wireless Adapters you plan to install is approved for use in your system and country. You are required to follow the manufacturer's post-approval requirements. It is also important to understand that it may not work due to hardware or software compatibility issues or dependencies.
You may find additional information here: Regulatory Information Regarding Wireless Hardware Installation or Upgrade
To further troubleshoot the issue, kindly follow the Recommended Settings for 802.11ax Connectivity and also try to revert to the last known working Windows version 24H2 to further isolate the problem.
If you have any questions, please let me know.
Best regards
Jed G.
Intel Customer Support Technician
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Hi Gregory092,
I'm checking to see if you were able to review my previous post. Please let me know if you have questions so I can proceed accordingly.
Best regards,
Jed G.
Intel Customer Support Technician
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Hello Gregory092,
I have not heard back from you so I will close this inquiry now. If you need further assistance, please submit a new question as this thread will no longer be monitored.
Best regards,
Jed G.
Intel Customer Support Technician
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