1. Freezing after login (with unplugged network cable)
This is caused by ethernet driver, not wireless.
Easy fix is to install an "ALX driver" instead of atl1c.
06:00.0 Ethernet controller: Atheros Communications Inc. AR8152 v2.0 Fast Ethernet (rev c1)
07:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
i recommend http://www.orbit-lab.org/kernel/comp...1-snpc.tar.bz2
or most recently available here