@FareyDonch 

Hi,

One thing you could try is to uninstall the Wi-Fi card from the Device Manager (highlight the "Intel Wi-Fi 6 AX200 ..." and then press the "Del" key on the keyboard) and after it is uninstalled click the button "Scan for hardware changes". This will trigger the Intel AX200 to be re-installed and once completed you can test again whether it will now connect to the access point or not.
This whole thing should only take you half a minute to do and occasionally it does indeed fix issues.
 

  @woozle

Hi there, I have tried following your instructions and it still doesn't work. The access point is visible for a brief moment, and then Windows says it can't connect to the network, before it just stops being discoverable on my computer and disappears from the available network list.

  @FareyDonch 

Ok.

But channels 36 to 48 are officially allowed for use in your country, right? (I remember there were one or two countries were those channels can't be used)

Apart from that, in case you have placed the antennas of the TX3000E very close to your PC, then try to move them farther away from it, as much as the length of the antenna cables allows. Some computers cause so much interference that it can actually affect the Wi-Fi signals. 
 

  @woozle 

Yup, in Indonesia 5GHz channels 36-48 and 149-161 are legal, and these are the only options my Indonesian-market Archer AX10 router (v2.0) allows me to choose. Channels 96-144 are not allowed for public use.

I have also moved the antenna further away from my computer and it still doesn't pick it up. I don't think it's the antenna since previously if I set my 5GHz access point to channel 153 or 157, the TX3000E picks it up, detects it as WiFi 6 and connects to it flawlessly. As soon as I switched it to channel 36-48 and 149 it refuses to connect to it and outright disappears from my available access point list.

  @FareyDonch 

It looks like others have had the same issue before.

https://community.intel.com/t5/Wireless/Regulatory-update-for-Indonesia-channels-36-40/td-p/1585811

Unfortunately, the thread linked to above does not mention if the OP got this resolved eventually.

  @woozle 

Interesting, I did not know that there were regulatory discrepancies between Indonesian models of the AX200 not adopting the newer regulations adopting channels 36-48 that came out in 2019. Thanks for the information.

I wonder if there's something I could do other than to somehow modify the Wi-Fi card's firmware to use the European firmware since they also accept both 36-48 and 149 and above channels on 5GHz.

  @Joseph-TP 

Thank you for the response, unfortunately I followed your steps to install the PROSet driver from the Dropbox URL you linked, and it still produces the same results before disappearing from the available network list.