Re: PROBLEM: linux kernel 3.9 rc1 and rtl8187 wireless, unable to connect to any available hotspots.

[Larry Finger <Larry.Finger@lwfinger.net>]

On 03/08/2013 03:23 PM, Jenya Y wrote:
> On 03/08/2013 10:02 PM, Larry Finger wrote:
>> No, it was not. At the end were the lines
>>
>> [   19.322729] rtl8187: wireless switch is on
>> [   19.322763] usbcore: registered new interface driver rtl8187
>> [   19.423269] systemd-udevd[272]: renamed network interface wlan0 to
>> wlp0s29f7u7u3
>> [   21.321746] IPv6: ADDRCONF(NETDEV_UP): wlp0s29f7u7u3: link is not ready
>>
>> Why are your udev rules renaming wlan0 to that crazy string?
>>
>> Your ESSID for the AP of "1.618029" is also strange, but that works OK here.
>>
>> Note that I added the ML to this reply.
>>
>> Larry
>>
>
> The ID didn't cause any issues before, neither did the strange names (courtesy
> of systemd 197) and they are indeed very strange but as you have already seen
> the same setup is working in 3.8.2
>
> Here are relevant dmesg output in 3.8.2 //
>
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 3.8.2-1-jy (jy@Y8) (gcc version 4.7.2 (GCC) ) #1
> SMP PREEMPT Thu Mar 7 23:37:49 CET 2013
> ....
> [   17.868726] cfg80211: Calling CRDA to update world regulatory domain
> [   17.991571] cfg80211: World regulatory domain updated:
> [   17.991574] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp)
> [   17.991576] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   17.991578] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   17.991580] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi,
> 2000 mBm)
> [   17.991582] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   17.991583] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi,
> 2000 mBm)
> [   18.393371] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
> [   18.393650] ieee80211 phy0: hwaddr 00:15:af:03:b1:88, RTL8187vB (default) V1
> + rtl8225z2, rfkill mask 2
> [   18.404459] rtl8187: Customer ID is 0x00
> [   18.404944] rtl8187: wireless switch is on
> [   18.404970] usbcore: registered new interface driver rtl8187
> [   18.518265] systemd-udevd[326]: renamed network interface wlan0 to wlp0s29f7u7u3
> [   20.419743] IPv6: ADDRCONF(NETDEV_UP): wlp0s29f7u7u3: link is not ready
> [   30.480518] wlp0s29f7u7u3: authenticate with 00:13:49:df:22:72
> [   30.515723] wlp0s29f7u7u3: capabilities/regulatory prevented using AP HT/VHT
> configuration, downgraded
> [   30.552709] wlp0s29f7u7u3: send auth to 00:13:49:df:22:72 (try 1/3)
> [   30.554577] wlp0s29f7u7u3: authenticated
> [   30.554666] rtl8187 5-7.3:1.0 wlp0s29f7u7u3: disabling HT as WMM/QoS is not
> supported by the AP
> [   30.554669] rtl8187 5-7.3:1.0 wlp0s29f7u7u3: disabling VHT as WMM/QoS is not
> supported by the AP
> [   30.555028] wlp0s29f7u7u3: associate with 00:13:49:df:22:72 (try 1/3)
> [   30.557461] wlp0s29f7u7u3: RX AssocResp from 00:13:49:df:22:72 (capab=0x411
> status=0 aid=1)
> [   30.558206] wlp0s29f7u7u3: associated
> [   30.558237] IPv6: ADDRCONF(NETDEV_CHANGE): wlp0s29f7u7u3: link becomes ready
>
>
> so is there maybe a quick fix?
>
> I have another idea, I should try out. Maybe I should try to disable IPv6 in my
> network settings.

I see that had no effect. You need to bisect between HEAD and v3.8.

Larry