Thread: A-LINK WNU wireless usb stick doesnt work

Hiya,

lsusb gives me the following output:

Bus 001 Device 002: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter

The driver CD provides me with a driver file named RTL8192SU_... Where does that leave me?!

wonders Mike

The module r8192s_usb supports your device. Here is what modinfo says:

modinfo r8192s_usb | grep 8171
alias: usb:v0BDAp8171d*dc*dsc*dp*ic*isc*ip*

Insert the device and see if the driver loaded:

Code:

lsmod | grep 8192

If it loaded and your wireless is still not working, let's check for any helpful messages:

Code:

dmesg | grep 8192

If it is looking for firmware, this post may be helpful: http://ubuntuforums.org/showpost.php...5&postcount=24

Remove and reinsert the device and see if it comes to life.

Please post back and let us know how it goes.

Sir, you are a Genius! An absolute Genius! Thx - rebooted my system and my dongle is there, finding my network. Copying the firmware to the RTL8192SU-directory did the trick.

Now, unfortunately not everything is OK. As I said, the dongle is found by the system and my wireless network is found by the dongle. But, I can't get a working connection. I tried to connect with the Networkmanager from the GUI, the dongle blinks like a Xmas-tree, but no connection - I don't get an IP-number.

I booted into console/terminal mode (since that's what I'm gonna do anyway), and did "sudo iwconfig essid="WippiesHome" (I'm running an unprotected network) - but still no connection. I attached some output if you're interested.

You might want to know that "dmesg | grep 8192" sends me quite a few of these messages:

[ 84.098311] rtl819xU:SetBWModeCallback8192SUsbWorkItem(): Switch to 20MHz bandwidth


Thx again, you've been tremendously helpful.

Mike

mike@salem-center:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1e:4f:bc:b1:cc
inet addr:192.168.0.14 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::21e:4fff:febc:b1cc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:89193 errors:0 dropped:0 overruns:0 frame:0
TX packets:45387 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:126759881 (126.7 MB) TX bytes:3071717 (3.0 MB)
Interrupt:21 Memory:fe9e0000-fea00000

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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 00:1a:9f:92:82:b8
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:745 errors:0 dropped:38 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:40286 (40.2 KB) TX bytes:0 (0.0 B)

mike@salem-center:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 802.11b/g/n ... ESSID:"WippiesHome"
Mode:Managed Frequency=2.412 GHz Access Point: 00:1D:19:F7:F0:0A
Bit Rate=130 Mb/s
Retry min limit:7 RTS thrff Fragment thrff
Power Managementff
Link Quality=0/100 Signal level=0 dBm Noise level=0 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

I booted into console/terminal mode (since that's what I'm gonna do anyway), and did "sudo iwconfig essid="WippiesHome" (I'm running an unprotected network) - but still no connection.

It wants at least one more command. It wants to know how you wish to connect, either DHCP or static. If it's DHCP, then do:

Code:

sudo dhclient wlan0

If it's static, then:

Code:

sudo ifconfig wlan0 192.168.what.ever up

Remember, if you prefer static (as I do), then you are responsible to populate /etc/resolv.conf with DNS nameservers; for example:

Code:

sudo su
echo "nameserver 192.168.your.router" > /etc/resolv.conf
exit

Sir, you are a Genius! An absolute Genius!

Tell my wife!

Well, it's never as easy as you'd think, is it

After a clean boot into the console, this is what happens:

http://pastebin.com/W2e8zFBR

So, I'm up against the wall once again...any suggestions out there?

Thanks again in advance!

Mike

Network Manager is designed to prevent a wireless connection if you have a wired ethernet connection, which you do.

https://help.ubuntu.com/community/NetworkManager

The computer should use the wired network connection when it's plugged in, but automatically switch to a wireless connection when the user unplugs it and walks away from the desk. Likewise, when the user plugs the computer back in, the computer should switch back to the wired connection. The user should, most times, not even notice that their connection has been managed for them

Please detach the cable, wait a few moments for NM to notice the change in state and try again.

mike@salem-center:~$ sudo dhclient wlan0

NM will make it very difficult to impossible to manage your network interfaces with manual methods.

Naw... No success. The computer finds my adapter, but doesn't make a connection...with or without GDM.

Before I bought the USB-adapter I used a wireless PCI-card. Everything worked fine with this, also a "double" Internet connection. Somehow the USB-adapter just doesn't fit into the grand scheme of things.

Dunno...shouldn't the message "[ 254.724418] rtl819xU:SetBWModeCallback8192SUsbWorkItem(): Switch to 20MHz bandwidth" ring some bells? But what bells, and what tune?

Wonders a gloomy Mike

OK, problem solved! Here's the link that put me on the right track:

http://www.mail-archive.com/debian-k.../msg56637.html

Obviously the driver provided with the distribution wasn't up to date, working, or generally up to it's karma. So, I downloaded a driver from here:

http://people.debian.org/~benh/rtl-wlan/

I used rtl8192su_linux_2.6.0002.0708.2009.tar.gz, extracted the .bin-file, put it into /lib/firmware/RTL8192SU (of course I took a backup of the original one), rebooted my computer, and! voila! I'm so much online now!

A big heartfelt Thank You to Chili555 who stayed interested and provided invaluable help! May his wife some day acknowledge His Geniusness.

I'm out of here for the moment, happily and wirelessly surfing away.

Mike

I still have problems with this a-link wnu wlan usb<--(link to specifications). I have just installed xubuntu 10.10 32bit to my old laptop and it's running smoothly but i can't get wlan working. I have at home cable modem and wlan router with nat, wpa2 security and hidden network.

Here's some data below.



I also followed instructions of this thread http://ubuntuforums.org/showpost.php...5&postcount=24 but no help. Could some one help me?

EDIT: double post, sorry.