Sitecom N300 WLA-4001 (RTL8192cu) Ubuntu 12.04

**daud566** · October 13th, 2012

Hey guyz,

I just bought a sitecom N300 wireless USB adapter, WLA-4001 and couldn't get it to work on my ubuntu 12.04 LTS 64bit(kernel 3.2.0-31) til now. The output from my lsusb is as follows;

Code:

lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 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 005 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 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0df6:0061 Sitecom Europe B.V.
Bus 004 Device 002: ID 04ca:002f Lite-On Technology Corp. 
Bus 004 Device 003: ID 046d:c00e Logitech, Inc. M-BJ58/M-BJ69 Optical Wheel Mouse

Now i did some checking around to see which chipset it uses and on the windows installation CD it came with, indicated that it was realtek RTL8192cu, USB\VID_0DF6&PID_0061.
It worked very well on WINXP so i figured it wasn't a hardware problem.

I had tried the following procedure to install it got from http://ubuntuforums.org/showthread.php?t=1972694 since they use similar drivers. This is the procedure i used:

Code:

// i disconnected the usb card & ran this command:
sudo gedit /etc/udev/rules.d/network_drivers.rules 

//And added this line to the file (which was empty) and saved:

ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="0df6 0061", ATTR{idProduct}=="0061", RUN+="/sbin/modprobe -qba rtl8192cu"

//Then ran this command:
sudo gedit /etc/modprobe.d/network_drivers.conf 

// And added this file (and saved)
install rtl8192cu /sbin/modprobe --ignore-install rtl8192cu $CMDLINE_OPTS; /bin/echo "0df6 0061" > /sys/bus/usb/drivers/rtl819cu/new_id

// Finally, i download this file:
http://anonscm.debian.org/viewvc/ker...&pathrev=19436

// Then created this directory
sudo mkdir directory /lib/firmware/RTL8192CU/
//and copied the dowloaded file to that directory(/lib/firmware/RTL8192CU/)
// Everything ran correctly upto this point.

Then ran

Code:

sudo modprobe rtl8192cu

which ran okay. I then restarted the machine. Now, the card could detect wireless connections but couldn't connect to them so i didn't understand what was happening.
I further probed with iwconfig and dmesg and this is what i got

Code:

iwconfig

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated Tx-   Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          
eth0      no wireless extensions.

Code:

dmesg | grep 8192

[    0.000000] PERCPU: Embedded 28 pages/cpu @ffff88022fc00000 s83136 r8192 d23360 u262144
[    0.000000] pcpu-alloc: s83136 r8192 d23360 u262144 alloc=1*2097152
[   12.120114] rtl8192cu: MAC address: 00:0c:f6:ef:e7:c5
[   12.120119] rtl8192cu: Board Type 0
[   12.193078] usbcore: registered new interface driver rtl8192cu
[   14.647935] rtl8192cu: MAC auto ON okay!
[   14.681940] rtl8192cu: Tx queue select: 0x05
[   14.682700] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cufw.bin

So as at this point i'm stuck and would greatly appreciate your help. Maybe i'm missing something so obvious. Thanks in advance.

**chili555** · October 13th, 2012

I can refer you to many threads with the exact same problem with rtl8192cu: it sees networks but won't connect. You can jump to the conclusion here: http://ubuntuforums.org/showpost.php...&postcount=130

If you need some additional guidance, please post back.