@David-TP Thanks for the reply , and sry that I'm not famillar with the professioinal wifi terminology related to DeviceIoControl. Does the error means any action I need to take ? and yes, I do...

Seeing many repeats of the following error message in the system log. Sat Jan 20 08:08:15 2024 daemon.err nrd[6935]: send ioctl failed Anyone know what this is ? thank you !