mac os wifi stuck Problem

I do not know what triggered the bug mac os wifi card dead, and the dead will be stuck with for a while.

Workaround:

1. Activity Monitor airportd search process, the forced termination.
2. Run the following commands in the terminal:

       sudo kill -9 `ps aux | grep -v grep | grep / usr / libexec / airportd | awk '{print $ 2}' `

       The above operation can only temporarily solve, can not solve.

        airportd currently observed CPU time is relatively long, it should be kept in the scan wifi hotspots.