AX200 wifi not detected.

[Rustycode]

I have my pc for a couple of years, just recently the wifi option just seem to disappear. Bluetooth is unaffected.

What could have caused this ?

[n_scott_pearson]

Likely you've had an 'update' installed by Windows Update or the Intel Driver & Support Utility (IDSA). What I suggest, in this case, is to do a clean install of the drivers. Here is my step-by-step algorithm for performing this process:

1. If you haven't already, download - but do not install just yet - the latest Bluetooth and Wireless driver packages for your adapter. Here are the current links for downloading these drivers: Wireless: https://www.intel.com/content/www/us/en/download/19351 and Bluetooth: https://www.intel.com/content/www/us/en/download/18649.
2. Most important! Disable Internet access. Unplug Ethernet cable and/or disable wireless. Keep disabled until told to re-enable. Note this Wireless disable *must* be of type that will persist and stay disabled across reboots.
3. From the Apps & Features applet, check for instances of Intel PROSet/Wireless Software and Intel Wireless Bluetooth. If none, skip forward to Step 6.
4. Uninstall each instance of Intel PROSet/Wireless Software and/or Intel Wireless Bluetooth that is present. When prompted, choose to "Discard Settings".
5. Manually reboot your computer, keeping Internet access disabled throughout.
6. From the Device Manager applet, check the Network Adapters section for an entry for Intel Wi-Fi 6 AX200 and check the Bluetooth section for an entry for Intel Wireless Bluetooth that has an intel driver associated with it. If neither is the case, skip forward to Step 10.
7. Right click on the entry for Intel Wi-Fi 6 AX200 and uninstall it, choosing to (checkmark) Delete the driver software for this device.
8. Right click on the entry for Intel Wireless Bluetooth and open its properties. If it has an Intel driver associated with it, then uninstall it, choosing to (checkmark) Delete the driver software for this device.
9. Go back to Step 5.
10. Install the downloaded Bluetooth driver package (my rule: always install Bluetooth first).
11. Install the downloaded Wireless driver package.
12. Manually shutdown and reboot your computer.
13. Reenable Internet access. Restore Ethernet cable and/or reenable wireless.
14. Test.

Note that it sometimes takes multiple uninstall (and reboot) cycles to clean out the old installations, so don't give up on the process. If you get to, say, 10 cycles, stop there and attempt the installation of the latest drivers.

Hope this helps,

...S

[Rustycode]

Thank you for your clear instructions. I have tried multiple time uninstalling and installing the drivers.

Sorry i forget to mention, is it normal that even my motherboard cant detect the wifi ? I even tried switching to another PCIe slot.

[n_scott_pearson]

If the motherboard (BIOS) cannot detect the card, then it has likely failed. If you purchased this card as a standalone product, then Intel will replace if it is inside its warranty period. In this case, after verifying that your warranty is still active (here: Determine if Your Product Is Still Under Warranty), you need to directly contact Intel Customer Support to initiate the RMA process (you cannot do this here). You can start here: Contact Intel Support or use this page: Intel Support Phone Directory to look up local/country phone numbers.

You can use the online forms service or email to initiate this process, but I recommend calling Intel directly. The above links provide access to local or toll-free numbers for most countries and these numbers provide support for most local languages. You could also use the chat service (start here: Intel Customer Support Chat), but understand that this service is offered only in English and is subject to the normal (9:00-5:00 M-F) office hours in the Pacific (UTC-8) time zone.

All that said, I am unsure that the cost (~US$20) makes doing an RMA worth the effort. 

Hope this helps,

...S