Intel 5100 AGN Driver not recognised

Can you give the output of:

sudo lshw -C network; lsusb; lspci; rfkill list; lsb_release -a

Thanks

sudo lshw -C network; lsusb; lspci; rfkill list; lsb_release -a

*-network
       description: Ethernet interface
       product: NetLink BCM5906M Fast Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 02
       serial: 00:1f:16:2d:8b:69
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.116 duplex=full firmware=sb v3.04 ip=192.168.1.5 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:50 memory:e5500000-e550ffff
  *-network DISABLED
       description: Wireless interface
       product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 00
       serial: 00:1e:65:f7:8a:18
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn driverversion=2.6.38-8-generic firmware=8.83.5.1 build 33692 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:47 memory:e4500000-e4501fff
Bus 008 Device 002: ID 0a5c:2150 Broadcom Corp. BCM2046 Bluetooth Device
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (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.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (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)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (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.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 ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3400 Series
01:00.1 Audio device: ATI Technologies Inc RV620 Audio device [Radeon HD 34xx Series]
02:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection
07:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
07:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
07:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12)
07:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12)
0: ideapad_wlan: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: ideapad_bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
3: acer-wireless: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
4: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no
5: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 11.04
Release: 11.04
Codename: natty

3: acer-wireless: Wireless LAN
       Soft blocked: yes

Do you have a shortcut combination or switch to enable / disable wifi? If so press it and rerun:

rfkill list

If it is still blocked, try:

sudo rfkill unblock all; sleep 3; sudo iwlist scan

Do you find wireless access points?

After pressing the shortcut combination I ran: rfkill list
0: ideapad_wlan: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
1: ideapad_bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
2: acer-wireless: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
3: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
4: phy0: Wireless LAN
 Soft blocked: yes
 Hard blocked: yes

sudo rfkill unblock all; sleep 3; sudo iwlist scan:
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wlan0 Interface doesn't support scanning : Network is down

rfkill list [again]
0: ideapad_wlan: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: ideapad_bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: no
2: acer-wireless: Wireless LAN
 Soft blocked: yes
 Hard blocked: no
3: hci0: Bluetooth
 Soft blocked: no
 Hard blocked: no
4: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: no

Tried {sudo rfkill unblock all; sleep 3; sudo iwlist scan} again, but the network is still down!

Do you have a shortcut combo to turn it off and on?

Like I said, I ran the commands before & after pressing the shortcut combo "Fn+F5".

Note: I am running Windows 7 and Ubuntu 11.04 dual boot on the machine.

In Windows be sure to set the device to not have be in power saving mode and also disable its ability to wake the PC up. This can affect other OSes

Did not help! Previously with version 10.10 the wifi was working perfectly.

Try:

sudo modprobe -r iwlagn; sleep 2; sudo modprobe iwlagn 11n_disable=1

hello,

I have the same problem, with the same Intel PRO/Wireless 5100 AGN, I'm running ubuntu & windows7 too, but on an HP dv6-1223sl.

I've tried all commands you've suggested but nothing happend.

sudo modprobe -r iwlagn; sleep 2; sudo modprobe iwlagn 11n_disable=1
Did not help! Any other suggestions?

I also tried upgrading to 11.10 but I have the same problem...

There is also no sound on my Lenovo U330 :(
Can someone help?

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