"iwlist scan" seems to always help me (less drastic than restarting the NM). Different laptops, some were upgraded to 16.04 and I did not see that issue on those boxes before 16.04.
"iwlist scan" seems to always help me (less drastic than restarting the NM). Different laptops, some were upgraded to 16.04 and I did not see that issue on those boxes before 16.04.