Atheros QCA9565 / AR9565 , Dell Inspiron 3521

[bte_rajan]

I have dell Inspiron 3521 laptop, which comes with preinstalled Ubuntu 12.04. But wireless does not detect networks

please help

here is some command which i have tried to know about my system

lshw -C network *-network

description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: 05
serial: 74:86:7a:23:72:8a
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=10.154.4.5 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:44 ioport:2000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
*-network UNCLAIMED
description: Network controller
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:02:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
resources: memory:c0500000-c057ffff memory:afb00000-afb0ffff

[chili555]

product: QCA9565 / AR9565 Wireless Network Adapter

Please see here: http://askubuntu.com/questions/35574.../355816#355816

Your wireless device is covered in the driver ath9k but only in kernels 3.8 and later. Please see here: http://askubuntu.com/questions/21549...r9565-wireless

You could update your 12.04 to 12.04.3 LTS which uses the 3.8.0-xx kernel or reinstall Ubuntu 13.04. You could certainly also compile the compat-wireless linked here.

Cool! A link within a link!

Post back if you get stuck.

[bte_rajan]

Thanks for the reply,
I check version of ubuntu in my system. here is the terminal output
cat /etc/lsb-release DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS"

uname -r
3.2.0-56-generic

please help (I am beginner ) what should i do next –

[chili555]

Please get a temporary wired ethernet connection, open a terminal and do:

sudo apt-get install linux-backports-modules-cw-3.8-precise-generic

Reboot and let us hear your report.

[bte_rajan]

Thanks a lot. its working.............. I spent almost a month searching for the solution from DELL support centre and various other sources . Thank you very much again !!!

[chili555]

A month? Dr. Chili is glad you came to the right place! Glad it's working. Please mark the thread Solved so that the searchers will find it: https://wiki.ubuntu.com/UnansweredPo.../SolvedThreads

[bte_rajan]

Thanks again, I now have another issue, wireless detects networks and I am able to connect to one of the network. but still I am unable to browse internet.
do I need to configure any thing in my mozila firefox explore before starting ??

[chili555]

Thanks again, I now have another issue, wireless detects networks and I am able to connect to one of the network. but still I am unable to browse internet.
do I need to configure any thing in my mozila firefox explore before starting ??

Possibly. In Firefox, select Edit > Preferences > Advanced > Network > Connection > Settings . In most cases, 'no proxy' is the preferred setting. We would love to see the results of:

nm-tool
ping -c3 8.8.8.8

[bte_rajan]

here is the terminal output

nm-tool

NetworkManager Tool

State: connected (global)

- Device: wlan0 [DU-Wireless] -------------------------------------------------
Type: 802.11 WiFi
Driver: ath9k
State: connected
Default: yes
HW Address: BC:85:56:5F:36:C5

Capabilities:
Speed: 11 Mb/s

Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes

Wireless Access Points (* = current AP)
MKu: Infra, 90:84:0DF:52:C1, Freq 2412 MHz, Rate 54 Mb/s, Strength 67 WPA2
*default: Infra, 00:18:E7:0EA:4D, Freq 2437 MHz, Rate 54 Mb/s, Strength 40

IPv4 Settings:
Address: 192.168.1.137
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1

DNS: 10.103.1.11


- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: 74:86:7A:23:72:8A

Capabilities:
Carrier Detect: yes

Wired Properties
Carrier: off


ping -c3 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.

--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2015ms

[chili555]

IPv4 Settings:
Address: 192.168.1.137
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1

DNS: 10.103.1.11

Where did that DNS nameserver come from? Did you set up a static IP address? Please don't tell me it was provided by the router by DHCP!?! How does it compare to other devices on the same router and network?