11-04-2014 12:04 PM
Hi, numerous users have reported this problem, but Lenovo has offered no help acording to google searches I have made:
When the battery level goes down below around 10% the Ideapad U510 disables the wifi device. This ALWAYS happens if the computer goes into hiberntion or standby because of low battery (lower than the percentage determined in the power setup) and OFTEN happens when the battery has been under a certain percent for some minutes.
After this has happened, it is impossible to get the wigi adapter enabled again. Without a cold boot. The wifi on/off is greyed out, and no device settings or others help. It does not help to uninstall Lenovo Power management, I have tried with all available Windows 8.1 energy management settings also.
Is anyone able to help? The problem has been known at Lenovo for over a year, but no solution from them.