WiFi Intel AX210NGW is not recognized

Solution 1:

The AX210NGW requires at least Kernel version 5.10, which was only very recently released. I currently do not know, when Ubuntu will include that, maybe others do.

Solution 2:

According to the Wireless Drivers list for iwlwifi on wireless.wifi.kernel.org, Wifi 6E support which is what the AX210NGW card has is only supported by Linux kernel versions 5.10 and up. This means that you need a version of Ubuntu using Linux kernel 5.10.

Short of running a mainline kernel (which is not officially supported on Ubuntu), the only version of Ubuntu with a version of the Linux kernel that works with the AX210 card from Intel is Ubuntu Hirsute Hippo 21.04 which was released last week.

You will need to either use a newer kernel or upgrade to Ubuntu Hirsute Hippo 21.04.