WiFi 6E Problems - RAXE500

For your desktop PC with the AX210, are you using antennas connected by a long coax cable? if so, then the signal loss over the length of the cable is really harmful to 6GHz band, especially since the FCC intially really crippled the 6GHz band, though the WiFi industry is working to get the FCC to be more reasonable.

One of the main issues with the FCC limitation is the transmit power limits. On 160MHz channel width, there is a cap of 250mW for the AP and 127mW for the client device, but that does not mean that you will always be at that limit, since they further impose another gut punch of PSD.

PS, at 80MHz channel width, the transmit power due to the restrictions, are cut in half for both the client and AP (and arefurther halved at 40MHz, and 20MHz)

The limitations, if paired with a long cable, or worse, an antenna that is not well suited for the 6GHz band in addition to a long coax cable causing a 5+ dB  drop in signal strength of what is already a heavily limited transmit power.

These are all things that will improve over time as the FCC loosens some of the restrictions, and WiFi AP and client devices release firmware updates to take advantage of looser restrictions, as the hardware is highly capable.

For the desktop setups the main isue that I have seen are from companies selling the adapters with a very basic 2 stream antenna, and a really long coax.

They end up suffering so much line loss that they struggle on 6Gz and even 5GHz DFS channels.

Aside from that, Windows 10 currently does not have full WPA3 support on the 6GHz band unless you go with a beta/insider build of Windows 10, though that update will make its way to the mainstream builds once everything is confirmed stable.