NM fails to connect to campus Wi-Fi network; wicd succeeds -- Centrino Ultimate-N 6300 iwlwifi
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
network-manager (Ubuntu) |
Confirmed
|
Low
|
Unassigned |
Bug Description
The iwlwifi drivers give exceptional performance on all APs I have connected to, be they WEP, WPA or open. The only time this system lets me down is when connecting to my campus wireless network. NetworkManager will only sometimes connect, and even manually configuring with iwconfig does not always work.
The error usually given is either:
Jan 30 01:07:51 Beast kernel: [ 8777.748471] wlan0: direct probe to 00:1a:1e:a0:3b:c0 (try 1/3)
Jan 30 01:07:51 Beast kernel: [ 8777.945384] wlan0: direct probe to 00:1a:1e:a0:3b:c0 (try 2/3)
Jan 30 01:07:51 Beast kernel: [ 8778.144952] wlan0: direct probe to 00:1a:1e:a0:3b:c0 (try 3/3)
Jan 30 01:07:52 Beast kernel: [ 8778.344474] wlan0: direct probe to 00:1a:1e:a0:3b:c0 timed out
or:
Nov 30 19:01:27 Beast kernel: [ 1924.850725] wlan0: authenticate with 00:24:6c:60:d0:00 (try 1)
Nov 30 19:01:27 Beast kernel: [ 1924.852183] wlan0: 00:24:6c:60:d0:00 denied authentication (status 17)
Other people report that this error may be linked to MAC filtering by the AP, but this should not be the case: my old computer with a Broadcom BCM4312 had no trouble.
This bug is also different from several bug reports that complain of limited speed or packet loss: when I can connect, the connection is flawless. But very often I cannot connecct. The connection is generally worse in crowded areas, or areas with many access points.
lspci:
Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 3e)
ifconfig wlan0:
wlan0 Link encap:Ethernet HWaddr 24:77:03:26:e8:50
inet addr:130.64.153.137 Bcast:130.
inet6 addr: fe80::2677:
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1288307 errors:0 dropped:0 overruns:0 frame:0
TX packets:296448 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:1016044127 (1.0 GB) TX bytes:27674773 (27.6 MB)
iwconfig wlan0:
wlan0 IEEE 802.11abgn ESSID:"
Bit Rate=300 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=61/70 Signal level=-49 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:2749 Invalid misc:7 Missed beacon:0
lsmod | grep iw:
iwlwifi 320164 0
mac80211 506154 1 iwlwifi
cfg80211 209294 2 iwlwifi,mac80211
dmesg | grep wlan:
[ 12.059405] wlan0: direct probe to 00:24:6c:60:d0:00 (try 1/3)
[ 12.258109] wlan0: direct probe to 00:24:6c:60:d0:00 (try 2/3)
[ 12.457695] wlan0: direct probe to 00:24:6c:60:d0:00 (try 3/3)
[ 12.657205] wlan0: direct probe to 00:24:6c:60:d0:00 timed out
[ 20.624778] wlan0: direct probe to 00:24:6c:60:d0:00 (try 1/3)
[ 20.822683] wlan0: direct probe to 00:24:6c:60:d0:00 (try 2/3)
[ 21.022217] wlan0: direct probe to 00:24:6c:60:d0:00 (try 3/3)
[ 21.221788] wlan0: direct probe to 00:24:6c:60:d0:00 timed out
[ 29.105117] wlan0: direct probe to 00:24:6c:60:d0:00 (try 1/3)
[ 29.303463] wlan0: direct probe to 00:24:6c:60:d0:00 (try 2/3)
[ 29.503007] wlan0: direct probe to 00:24:6c:60:d0:00 (try 3/3)
[ 29.702581] wlan0: direct probe to 00:24:6c:60:d0:00 timed out
[ 37.888734] wlan0: direct probe to 00:24:6c:60:d0:00 (try 1/3)
[ 38.087513] wlan0: direct probe to 00:24:6c:60:d0:00 (try 2/3)
[ 38.287083] wlan0: direct probe to 00:24:6c:60:d0:00 (try 3/3)
[ 38.486602] wlan0: direct probe to 00:24:6c:60:d0:00 timed out
[ 46.376942] wlan0: authenticate with 00:24:6c:60:d0:00 (try 1)
[ 46.411091] wlan0: 00:24:6c:60:d0:00 denied authentication (status 17)
syslog:
Nov 30 19:01:27 Beast kernel: [ 1924.850725] wlan0: authenticate with 00:24:6c:60:d0:00 (try 1)
Nov 30 19:01:27 Beast kernel: [ 1924.852183] wlan0: 00:24:6c:60:d0:00 denied authentication (status 17)
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:24 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:27 Beast NetworkManager[
Nov 30 19:02:30 Beast wpa_supplicant[
Nov 30 19:02:30 Beast NetworkManager[
Nov 30 19:02:30 Beast kernel: [ 1987.684183] wlan0: authenticate with 00:24:6c:60:d0:00 (try 1)
Nov 30 19:02:30 Beast kernel: [ 1987.687421] wlan0: 00:24:6c:60:d0:00 denied authentication (status 17)
sudo iwlist scan:
wlan0 Scan completed :
Cell 01 - Address: 00:24:6C:60:D0:10
Cell 02 - Address: 00:0B:86:58:19:A0
Cell 03 - Address: 00:24:6C:60:CF:A0
Cell 04 - Address: 00:0B:86:58:1F:A0
Cell 05 - Address: 00:24:6C:60:CF:B0
Cell 06 - Address: 00:0B:86:59:FD:C8
Cell 07 - Address: 00:24:6C:60:D5:50
Cell 08 - Address: 00:0B:86:58:1F:A8
Cell 09 - Address: 00:24:6C:60:CF:F0
lsb_release -d:
Description: Ubuntu 11.10
uname -a:
Linux Beast 3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 13:27:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
Changed in network-manager (Ubuntu): | |
status: | Incomplete → Confirmed |
importance: | Undecided → Low |
description: | updated |
summary: |
- Intel Centrino 6300 Cannot connect direct probe timed out + NM fails to connect to campus Wi-Fi network; wicd succeeds -- Centrino + Ultimate-N 6300 iwlwifi |
Thank you for filing this bug report and helping to make Ubuntu better.
Your syslog excerpt explains precisely why the connection times out and authentication is denied while trying to connect: there's an error response from the accesspoint, in the form of the "status 17" message.
I understand this is quite cryptic. Status 17 is defined as "Association denied because AP is unable to handle additional associated STAs" in the IEEE 802.11-2007 standard. I basically means that the authentication was denied because the accesspoint cannot handle additional "stations" to be connected to it. Stations are any wireless client that might try to connect.
As a solution, the best I can offer is to suggest you contact your network's administrators and point to this bug report as an additional indication that the network is crowded.
Closing as Invalid since it's not a bug in Ubuntu.
Please, don't hesitate to report bugs for any further issues you may find! :)