Under the network
that supports Wi-Fi 6 (802.11ax), the terminal uses some Intel wireless
adapters that do not support the Wi-Fi 6 network, and the problematic network
card driver may not be able to scan the wireless network. This is true even if
the network also supports Wi-Fi5 (802.11 ac).?
There is a problem with some versions of the Intel NIC Wi-Fi driver, some versions of Intel® Wireless Adapters that support 802.11 ac will not show Wi-Fi 6 (802.11 ax) networks in their scan list, so they cannot connect to the Fi 6 (802.11ax) wireless access point even if the access point also supports Wi-Fi 5 (802.11ac). Upgrade the version of the Intel wireless adapter driver software involved to the specified version, and the model and recommended version of the network card involved are shown in the link below.
Intel official announcement link:
https://www.intel.cn/content/www/cn/zh/support/articles/000054799/network-and-io/wireless-networking.html
Intel driver download address:
https://downloadcenter.intel.com/zh-cn/product/59484/Intel-Wireless-Products