Talk page - wifi card Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter
please try the rtl8812au driver
by 9swords, 11:40, 6 November 2021
Aircrack-ng have also developed driver for rtl88xx chipset, see github.com/aircrack-ng/rtl8812au. The driver will work for rtl8812au and rtl8821au, probably it will work with rtl8821ae too.

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