Hello @思远
Did you recently install any updates?
This may caused by KB5014697, after installing updates released June 14, 2022, you might have issues using Wi-Fi hotspot on Windows device.
https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-21h2
And this issue has been resolved by installing KB5014668.
Best Regards
Karlie
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