Comment 10 for bug 139070

I've got a strange behaviour this evening: after daily upgrade of Ubuntu
Gusty, I tried to connect to my domestic WLAN with WPA encryption (wifi
adapter is a Linksys WUSB54GR, based on Ralink RT73 chipset, workink
perfectly with Feisty and Enhanced Legacy Driver from
rt2x00.serialmonkey.com), guessing if my device would work "out of the box".
I connected to WLAN browsing the web (wired connection unplugged!), but
Network Manager didn't show any longer the WLAN in range (before I
connected, there were three WLAN in range). I tried to reboot my PC hoping
to see all working, but WLAN connection was down, finding these lines in
dmesg log:

[ 54.314915] ieee80211_init: failed to initialize WME (err=-17)
[ 54.338039] iwlwifi_rc80211_simple: Unknown symbol
iwlwifi_ieee80211_rate_control_unregister
[ 54.338068] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_sta_info_put
[ 54.338093] iwlwifi_rc80211_simple: Unknown symbol iwlwifi_sta_info_get
[ 54.338133] iwlwifi_rc80211_simple: Unknown symbol
iwlwifi_ieee80211_rate_control_register
[ 54.338366] wmaster0: Selected rate control algorithm 'simple'
[ 54.463209] usbcore: registered new interface driver rt73usb

I tried to unplug and plug again my interface and I got:

[ 226.211395] usb 5-1: USB disconnect, address 2
[ 226.214184] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x07
failed for offset 0x3040 with error -19.
[ 226.214189] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x06
failed for offset 0x3040 with error -19.
[ 226.214193] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x0a
failed for offset 0x0000 with error -19.
[ 226.214196] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x06
failed for offset 0x3028 with error -19.
[ 226.214200] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x06
failed for offset 0x3064 with error -19.
[ 226.214203] phy0 -> rt2x00usb_vendor_request: Error - Vendor Request 0x0c
failed for offset 0x0000 with error -19.
[ 231.625694] usb 5-1: new high speed USB device using ehci_hcd and address
4
[ 231.943811] usb 5-1: configuration #1 chosen from 1 choice
[ 232.206970] wmaster0: Selected rate control algorithm 'simple'
[ 232.292153] ADDRCONF(NETDEV_UP): wlan0: link is not ready

Afeter I plugged again ethernet cable, I have these:

[ 282.877026] eth0: link up, 100Mbps, full-duplex, lpa 0x41E1
[ 282.878721] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 293.013585] eth0: no IPv6 routers present
[ 311.868698] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 316.259234] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 316.319910] eth0: link up, 100Mbps, full-duplex, lpa 0x41E1
[ 330.263501] eth0: no IPv6 routers present

Trying again to connect to WLAN (using Network Manager, instead o manual
configuration) I got:

[ 978.102114] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 979.801642] wlan0: Initial auth_alg=0
[ 979.801647] wlan0: authenticate with AP 00:18:39:28:95:46
[ 979.803025] wlan0: RX authentication from 00:18:39:28:95:46 (alg=0
transaction=2 status=0)
[ 979.803027] wlan0: authenticated
[ 979.803029] wlan0: associate with AP 00:18:39:28:95:46
[ 979.805774] wlan0: RX AssocResp from 00:18:39:28:95:46 (capab=0x471
status=0 aid=1)
[ 979.805777] wlan0: associated
[ 979.807425] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 980.086085] wlan0: disassociate(reason=3)

Unplugging ethernet cable and connecting again to wlan now it all seems
working.... dmesg gives:

[ 1113.654334] wlan0: Initial auth_alg=0
[ 1113.654339] wlan0: authenticate with AP 00:18:39:28:95:46
[ 1113.655719] wlan0: RX authentication from 00:18:39:28:95:46 (alg=0
transaction=2 status=0)
[ 1113.655721] wlan0: authenticated
[ 1113.655724] wlan0: associate with AP 00:18:39:28:95:46
[ 1113.658590] wlan0: RX AssocResp from 00:18:39:28:95:46 (capab=0x471
status=0 aid=1)
[ 1113.658593] wlan0: associated
[ 1113.660207] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1113.668841] wlan0: RX WEP frame with unknown keyidx 2
(A1=33:33:00:00:00:16 A2=00:18:39:28:95:46 A3=00:18:39:01:f8:be)
[ 1114.048896] wlan0: duplicate address detected!
[ 1119.056374] wlan0: duplicate address detected!

I don't understand tha "duplicate address detected" but now it goes

However I have good news (for now!), PC doesn't hang... :-)

kernel is 2.6.22-13-generic
Can I provide more informations in some (to me) unknown ways?