Problem scenario: Huawei ensp enterprise network simulator reports an error “Starting device AR failed error code 40”

Alternative scenario: The following version of virtual box 6.1.4 reports an error raw-mod is unavailable courtesy of Hyper-V

Reason: Hyper-V is occupied by wsl2, and VB cannot be used, so close Hyper-V: before closing, you need to completely delete wsl2, which can be replaced by converting to wsl1.

1. Convert wsl2 to wsl1 wsl --set-version Ubuntu 2
2. Security Center – Device Security – Turn off Kernel Isolation.
3. reboot

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