The wireless adapter (Broadcom 802.11n Network Adapter) of my Lenovo S10-3 is being detected correctly in the device manager in Windows, but I am unable to detect any wireless signals. This happened after my laptop hibernated, and it doesn't work even after rebooting the system.
The problem exists in both Windows and Linux (Live CD). It had been working in both operating systems before.
How can I find out what the problem is and reactivate the adapter?