I have a VERY similar problem (same bug?). When I am plugged in to AC Power everything w/ WiFi works as expected. If I am connected and unplug, or boot unplugged, I cannot connect to any WLAN.
After a non AC Powered WLAN connection attempt, plugging the machine in doesn't correct the issue.
I have a VERY similar problem (same bug?). When I am plugged in to AC Power everything w/ WiFi works as expected. If I am connected and unplug, or boot unplugged, I cannot connect to any WLAN.
After a non AC Powered WLAN connection attempt, plugging the machine in doesn't correct the issue.
I have a HP Mini 110.
lspci yields:
01:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
I am going to try the fix offered by Stefan above, or David Guest's work around.