Great question — answering as the UphillTech team:
I recommend using the following workaround. It is much more elegant. It uses UDEV to disable D3Cold automatically when the network card is detected. Create a new UDEV rule file: sudo nano /etc/udev/rules.d/90-ax210-d3cold.rules Write that rule and save: ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x8086", ATTR{device}=="0x2725", ATTR{d3cold_allowed}="0" 8086: Intel vendor ID 2725: AX210 device ID Confirm by yourself running: $ lspci -nnk | grep Network 0000:02:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6E(802.11ax) AX210/AX1675* 2x2 [Typhoon Peak] [8086:2725] (rev 1a) Check that D3Cold is disabled for the card (substitute 0000:02:00.0 with yours): $ cat...
Full answer by degD: https://superuser.stackexchange.com/a/1935704 (CC BY-SA 4.0).
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