Intel AC-8260 Causing CPU to hit 100% usage all the time

[shong57]

Hello, ever since I have replaced my laptop's wifi card with Intel AC-8260. It has been causing its CPU, specifically the first core to run at 100% usage at all times. Drivers have been updated to latest version, but it was to no avail, as the issue hasn't been resolved.

What can I do to fix this? Thank you!

[DeividA_Intel]

Hello shong57,  

Thank you for posting on the Intel® communities. I am sorry to know that you are having issues with your Intel® Dual Band Wireless-AC 8260.   

In order to better assist you, please provide the following:  

1. Is the Bluetooth working?   

2. What is the brand and model name of your laptop?

3. What is the operating system installed, as well as the version and build?

4. What was the brand and model name of the previous/old wireless adapter?

5. Do you experience any freezing or crashes?

Also, you may find more information in the following link:

Regulatory Information Regarding Wireless Hardware Installation or Upgrade: https://www.intel.com/content/www/us/en/support/articles/000005687/wireless.html

Regards,  

Deivid A.  

Intel Customer Support Technician 

[shong57]

Thank you for being here with me, and to answer your questions. Here are the information I could gather.

1. Yes, my bluetooth is working normally. There is no issues.
2. The laptop's brand and model is ASUS K550JK
3. The operating system installed is Windows 11 Pro 22H2, 22621.1413 Build
4. The previous wireless adapter is Ralink RT3290
5. No, I have not experienced any issues relating to crashes and/or freezes. Performance however is reduced noticeably due to the CPU being utilized abnormally.

[DeividA_Intel · Accepted solution]

Hello shong57, 

Thanks for the confirmation. Based on the situation described, please try the following:

1. Try a clean install of the wireless driver: 

• Driver: https://www.intel.com/content/www/us/en/download/19351/windows-10-and-windows-11-wi-fi-drivers-for-intel-wireless-adapters.html
• Steps: https://www.intel.com/content/www/us/en/support/articles/000022173.html

2. Make sure that all operating system optional updates are installed?

3. Check with Asus to confirm that the latest BIOS is installed.

Best regards, 

Deivid A.  

Intel Customer Support Technician 

[shong57]

Thank you for the instructions, my problem has been solved after closely taking every steps needed in successful operation.

[DeividA_Intel]

Hello shong57, 

Thanks for the response. I am glad to know that your issue is solved, I will proceed to close this thread. However, you can open a new one in case you need further support or if you face any issues with our products.

I also recommend you to check with the laptop manufacturer so they can confirm the compatibility of the wireless card that you would like to use. Just for future reference.

Regards,  

Deivid A. 

Intel Customer Support Technician