Great question — answering as the UphillTech team:
Since we now know that hp-wmi is blocking your wireless, let's blacklist it: sudo -i echo "blacklist hp-wmi" >> /etc/modprobe.d/blacklist.conf exit You should be all set.
Full answer by chili555: https://askubuntu.stackexchange.com/a/485964 (CC BY-SA 3.0).
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