Miracast non fonctionnel

[CER24]

Bonjour,

Voici ma configuration :
Dell Latitude 5520
I5-1135G7
16Go RAM DDR4 3200MHz
512Go ROM
Carte Wifi : Intel Wi-Fi AX201 160MHz
Windows 11 Pro 25H2 + Dell Command Update à jour

Voici mon problème :
Je n'ai plus la possibilité d'utiliser Miracast ("Votre PC ou votre appareil ne prends pas en charge Miracast, Il ne peut donc pas projeter sans fil.")

Je travaille avec uniquement ce modèle et j'en ai environ 80 dans mon entreprise. Les personnes installées en Windows
11 25H2 sur le même modèle comme moi peuvent projeter avec Miracast.

Voici les tests que j'ai fait :
Changé de version du pilote graphique : 32.0.101.7026 actuelle mais j'ai essayé d'autres versions idem.
Changé de version du pilote Wifi : 23.110.0.5 actuelle mais j'ai essayé de descendre en 22.100 et rien n'y fait
Changé de carte Wifi interne par une carte d'un exemplaire fonctionnel.
Réinstallé Windows 11 25H2.
Réinstallé Windows 10 22h2.
Mis un dongle Wifi USB.

Rien n'y fait.

Tous ces tests sont des échecs et je n'arrive pas à connecter un écran Miracast.

Auriez-vous la possibilité de m'aider ?

[Mike_Intel]

Hello CER24,

Thank you for posting in Intel community Forum.

Veuillez noter que je ne peux vous assister qu'en anglais. J'ai utilisé un outil de traduction en ligne pour traduire cette réponse, il se peut donc que la traduction ne soit pas entièrement précise.

For me to better understand and diagnose the issue further, let me ask you to provide detailed responses to the following questions. This information will help me isolate the problem and determine the most appropriate course of action moving forward.

1. Was it working fine before?
2. If yes, what was the last change made in the system?
3. Did you recently update your OS from Windows 10 to 11?
4. Did you manually install this AX201 as an upgrade on this system or is it embedded on the system?
5. What are the troubleshooting steps that you tried so far?
6. For me to review the hardware and the installed drivers, please help generate the SSU logs. Please refer to the link below for the steps on how to generate the logs:

How to get the Intel® System Support Utility Logs on Windows*

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[CER24]

1. Was it working fine before?
   I don’t know, it was a spare computer. I didn’t check before deploying the image. After the setup, I tried to use Miracast and that’s when I saw the error message.
   
   
2. If yes, what was the last change made in the system?
3. Did you recently update your OS from Windows 10 to 11?
   Yes, last week.
   
   
4. Did you manually install this AX201 as an upgrade on this system or is it embedded on the system?
   It's embedded.
   
   
5. What are the troubleshooting steps that you tried so far?
   

   In order, I did the following:

   • Identified the problem

   • Updated all drivers using Intel Auto Detect

   • Downgraded both the AX201 and graphics drivers to older versions

   • Swapped the Wi-Fi card with another one (same model) from a working computer

   • Reinstalled Windows using our Windows 10 master image

   • Tested using Hiren’s Boot

   None of these worked.

6. For me to review the hardware and the installed drivers, please help generate the SSU logs. Please refer to the link below for the steps on how to generate the logs:
   I will do this and get back to you.
   
   Thanks a lot.
7.  

[CER24]

Here's the file.

[Mike_Intel]

Hello CER24,

I hope this message finds you well. 

Were you able to check the previous post?

Please let us know if you still need assistance.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello CER24,

Thank you for the update.

Please refer to the links below. As per the 1st link below, the supported OS for Miracast is only Windows 8.1 and Windows 10 only.

Frequently Asked Questions about Intel® Graphics Drivers Support for...

Let me also share this link as additional information that you can try, however this is for Window 10.

Unable to Cast the Screen to Microsoft Miracast* Display

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[CER24]

Hello Mike_Intel,

I followed the steps from the first link and updated the drivers. I have attached the new SSU report after the updates.

I also tried the procedure from the second link. I copied the Active.GRL file from a working Miracast-compatible computer to the system that is having the issue, then rebooted. Unfortunately, Miracast is still not working.

Please let me know if you need any further information or additional tests.

Best regards.

[Mike_Intel]

Hello CER24,

Thank you for the update.

Please take note that as per the link that I provided, Miracast only supports Windows 8.1 and Windows 10.

You can try check with the system manufacturer if they have driver for Miracast that will work on your current OS.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello CER24,

I hope this message finds you well. 

Were you able to check the previous post?

Please let us know if you still need assistance.

Best regards,

Michael L.

Intel Customer Support Technician

[CER24]

Hello,

Miracast is working on our same models computer on Windows 11. 

I've opened a subject on the Dell Forum 5 days ago. But I haven't got any response yet. 

Thanks for the help. 

[Mike_Intel]

Hello CER24,

Thank you for the update.

You may also talk to Dell on how the Miracast is being implemented in your system.

Kindly ask for assistance on how to set it up.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello CER24,

I hope this message finds you well. 

I am just making a follow up to check if you are now talking to Dell for further assistance regarding this issue.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[CER24]

Hello @Mike_Intel ,

I apologize for not responding. I did post a question on the Dell forum, but I haven't received a reply yet.

I will get back to you if necessary.

Thank you again for your help.

Best regards.

[Mike_Intel]

Hello CER24,

Thank you for the update.

Kindly check with them on how you can enable this feature.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician

[Mike_Intel]

Hello CER24,

I hope you are having a good day.

I am just checking if you are now talking to Dell regarding this issue.

If you have questions, please let us know. Thank you.

Best regards,

Michael L.

Intel Customer Support Technician