Edimax wlan USB EW-7622UMn - Ubuntu 12.10 - device not compatible, never able to authenticate (other cards on same system fine)

[yossarian_uk]

I have an N300 compatible USB WLAN card - edimax - ew-7622UMn.

It doesn't work with Ubuntu at all.

I can see the available networks, however when I connect it will *never* authenicate (And thus never connect)

I can connect to the network using the onboard wlan card on my samsung netbook fine (using the same details)

The ew-7622UMn card should be compatible with the WLAN network - I'm trying to connect with WPA2 to a wireless G network .

syslog shows

----------------------
Nov 16 12:56:04 ubuntu wpa_supplicant[2155]: wlan2: Trying to associate with SSID 'wirelessderek'
Nov 16 12:56:04 ubuntu wpa_supplicant[2155]: wlan2: Association request to the driver failed
Nov 16 12:56:04 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: disconnected -> associating
Nov 16 12:56:04 ubuntu wpa_supplicant[2155]: wlan2: Associated with 00:16:b6:18:5c:f7
Nov 16 12:56:04 ubuntu wpa_supplicant[2155]: wlan2: WPA: 4-Way Handshake failed - pre-shared key may be incorrect
Nov 16 12:56:04 ubuntu wpa_supplicant[2155]: wlan2: CTRL-EVENT-DISCONNECTED bssid=00:16:b6:18:5c:f7 reason=0
Nov 16 12:56:04 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: associating -> 4-way handshake
Nov 16 12:56:04 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: 4-way handshake -> disconnected
Nov 16 12:56:09 ubuntu wpa_supplicant[2155]: wlan2: Trying to associate with SSID 'wirelessderek'
Nov 16 12:56:09 ubuntu wpa_supplicant[2155]: wlan2: Association request to the driver failed
Nov 16 12:56:09 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: disconnected -> associating
Nov 16 12:56:10 ubuntu wpa_supplicant[2155]: wlan2: Associated with 00:16:b6:18:5c:f7
Nov 16 12:56:10 ubuntu wpa_supplicant[2155]: wlan2: WPA: 4-Way Handshake failed - pre-shared key may be incorrect
Nov 16 12:56:10 ubuntu wpa_supplicant[2155]: wlan2: CTRL-EVENT-DISCONNECTED bssid=00:16:b6:18:5c:f7 reason=0
Nov 16 12:56:10 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: associating -> 4-way handshake
Nov 16 12:56:10 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: 4-way handshake -> disconnected
Nov 16 12:56:13 ubuntu NetworkManager[1688]: <warn> Activation (wlan2/wireless): association took too long.
Nov 16 12:56:13 ubuntu NetworkManager[1688]: <info> (wlan2): device state change: config -> need-auth (reason 'none') [50 60 0]
Nov 16 12:56:13 ubuntu NetworkManager[1688]: <warn> Activation (wlan2/wireless): asking for new secrets
Nov 16 12:56:15 ubuntu NetworkManager[1688]: <info> (wlan2): supplicant interface state: disconnected -> inactive
---------------

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1079671/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[yossarian_uk (morgancoxuk)]

I emailed edimax support - I was advised to try the driver from

http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&ProdID=231&DownTypeID=3&GetDown=false&Downloads=true

This doesn't work in either Ubuntu 12.10 or 12.04. (Ubuntu 12.04 has the exact same issues as 12.10 'out the box' also )

I have included the full build log as an attachment

here is a snipet

----------------
In file included from /home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/include/drv_types.h:73:0,
                 from /home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c:24:
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/include/rtl871x_recv.h: In function ‘rxmem_to_recvframe’:
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/include/rtl871x_recv.h:435:30: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/include/rtl871x_recv.h:435:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c: In function ‘_init_cmd_priv’:
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c:93:75: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c:101:60: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c: In function ‘_init_evt_priv’:
/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.c:135:59: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
make[2]: *** [/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/cmd/rtl871x_cmd.o] Error 1
make[1]: *** [_module_/home/morgan/Downloads/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405/driver/rtl8712_8188_8191_8192SU_usb_linux_v2.6.6.0.20120405] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.5.0-18-generic'
make: *** [modules] Error 2
##################################################
Compile make driver error: 2
Please check error Mesg
##################################################
----------------

[yossarian_uk (morgancoxuk)]

Why invalid ?

At the moment this hardware is NOT compatible with Ubuntu 12.10 or 12.04?

You can never connect to a WPA network

Using ndiswrapper is works - i.e the Windows driver - it also works in Centos6 .

[UB1 (ub2)]

Moreover while trying to complie the latest driver from realtek receiving following error:
rtl871x_xmit.h:355:24: error: field ‘xmit_tasklet’ has incomplete type

AND

rtl871x_cmd.c:93:75: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]