[WIFI] Cannot connect to or enable AP with 6GHz band. Sometimes the AP cannot be enabled

I cannot connect to remote AP, or enable AP with 6GHz band with WIFI 6E modules.
Did any one success to switch WIFI to 6GHsz band?

Sometimes the AP cannot be enabled.

Wi-Fi 6E and 6GHz band limitations: For example, China (CN, or other counties) has not yet opened the 6GHz band. To test 6GHz functionality, you must switch the country code to the United States (US) or Canada (CA).

One possible cause is that the country code is set to CN (or other counties), which makes the 6 GHz band unavailable. Please set the country code to US or CA and verify that the SupportedChannelListIn6g[] contains the correct channels.