Проблемы с подключением к Wi-Fi и Ethernet после обновления до 12.04

Недавно я обновил Ubuntu 12.04 с 11.10, и с тех пор я не смог подключиться к Интернету, ни через Wi-Fi, ни через Ethernet. Я читал много постов, но не нашел решения ни в одном. Мой ноутбук - 64-битный HP-G61, моя карта Wi-Fi - Atheros AR9285, а моя карта Ethernet - Realtek RTL 8101E / RTL8102E. До обновления все работало нормально. Я попытался выполнить ручную настройку сети с помощью терминала, но это не сработало. Кто-нибудь знает, как я могу решить проблему? Возможно ли переключиться обратно на старую работающую 11.10? Заранее большое спасибо, прилагаю вывод некоторых команд

toni@toni-HP-G61-Notebook-PC:~/Documents$ ifconfig
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:16436  Metric:1
              RX packets:2880 errors:0 dropped:0 overruns:0 frame:0
              TX packets:2880 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:202958 (202.9 KB)  TX bytes:202958 (202.9 KB)


wlan0     Link encap:Ethernet  HWaddr 90:4c:e5:58:b4:59  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0:avahi Link encap:Ethernet  HWaddr 90:4c:e5:58:b4:59  
          inet addr:169.254.8.172  Bcast:169.254.255.255  Mask:255.255.0.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1

toni@toni-HP-G61-Notebook-PC:~/Documents$ iwconfig
lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"WLAN_A514"  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=14 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

toni@toni-HP-G61-Notebook-PC:~/Documents$ rfkill list
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: hp-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no

toni@toni-HP-G61-Notebook-PC:~/Documents$ sudo lshw -C network
[sudo] password for toni: 
  *-network               
       description: Wireless interface
       product: AR9285 Wireless Network Adapter (PCI-Express)
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 01
       serial: 90:4c:e5:58:b4:59
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=3.2.0-27-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 memory:d6000000-d600ffff
  *-network UNCLAIMED
       description: Ethernet controller
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 02
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list
       configuration: latency=0
       resources: ioport:2000(size=256) memory:d4010000-d4010fff memory:d4000000-d400ffff memory:d4020000-d402ffff

toni@toni-HP-G61-Notebook-PC:~/Documents$ cat /etc/modprobe.d/ath9k.conf 
options ath9k nohwcrypt=1

toni@toni-HP-G61-Notebook-PC:~/Documents$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.3 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
00:1f.6 Signal processing controller: Intel Corporation 82801I (ICH9 Family) Thermal Subsystem (rev 03)
01:00.0 VGA compatible controller: NVIDIA Corporation G98M [GeForce G 103M] (rev a1)
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)

toni@toni-HP-G61-Notebook-PC:~/Documents$ nm-tool

** (process:4012): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files

NetworkManager Tool

State: unknown


** (process:4012): WARNING **: error: could not connect to NetworkManager

toni@toni-HP-G61-Notebook-PC:~/Documents$ cat /etc/network/interfaces
auto lo
iface lo inet loopback


auto wlan0
iface wlan0 inet dhcp


iface eth0 inet static
address 192.168.1.10
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1