Comment 22 for bug 762845

From lspci.txt:
06:00.0 Network controller [0280]: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01)
 Subsystem: Foxconn International, Inc. Device [105b:e01f]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 32 bytes
 Interrupt: pin A routed to IRQ 17
 Region 0: Memory at d0300000 (64-bit, non-prefetchable) [size=64K]
 Capabilities: <access denied>
 Kernel driver in use: ath9k
 Kernel modules: ath9k

From Rfkill.txt:
0: acer-wireless: Wireless LAN
 Soft blocked: yes
 Hard blocked: no

From ProcModules:
ath9k 118238 0 - Live 0x0000000000000000
ath9k_common 13851 1 ath9k, Live 0x0000000000000000
ath9k_hw 323077 2 ath9k,ath9k_common, Live 0x0000000000000000

From BootDmesg:
[ 12.009916] ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
[ 12.010451] Registered led device: ath9k-phy0::radio
[ 12.010470] Registered led device: ath9k-phy0::assoc
[ 12.010486] Registered led device: ath9k-phy0::tx
[ 12.010504] Registered led device: ath9k-phy0::rx
[ 12.010511] ieee80211 phy0: Atheros AR9280 Rev:2 mem=0xffffc90001140000, irq=17

Seems working, can you please follow this guide:
https://wiki.ubuntu.com/DebuggingNetworkManager
and get more information
Thanks
Fabio