After upgrade Ubuntu to 12.10 (x64) (pure install), my phone can't find my notebook's wifi hotspot. The hotspot was created by click 'Create New Wireless Network...' from the network indicator menu, it works for previous Ubuntu versions. But now it doesn't!
By the way, the Windows 7's hotspot works just fine.( Dual-boot system )
My notebook is Lenovo IdeaPad Y450, I can connect to wifi, but can't set hotspot.