View Full Version : [ubuntu] Fun with wireless

June 15th, 2010, 01:47 PM
I own a Toshiba U400 With a Intel Wifi link 5100. It runs on ubuntu 9.04 jaunty 64bit.
I installed the compat-wireless with the backport package.

-At home with a 802.11n network there is no problem connection is allways quick and stable
-At university I am sitting under the acces point, the "eduroam" network shows up in my list with 100% strength. But when I connect it just keeps trying to connect, after a while of trying it shows me my login settings (WPA& WPA2 enterprise, PEAP, MSCHAPv2) and then I can choose to repeat the whole trying story.
In some buildings on some days I do get connection (1 out of 10) (so no, it's not my loginname or password or something)

My output of iwevent:

14:25:45.361853 wlan0 Scan request completed
14:25:45.362415 wlan0 Set Mode:Managed
14:25:45.364213 wlan0 Set Frequency:5.18 GHz (Channel 36)
14:25:45.570938 wlan0 Custom driver event:ASSOCRESPIE=01088c1218243048606c2d1a6e181bff ff0000000000000000000000000000000000000000003d1624 050700000000000000000000000000000000000000dd180050 f2020101800003a4000027a4000042435e0062322f00
14:25:45.571814 wlan0 New Access Point/Cell address:00:23:04:C8:A5:4D
14:25:48.615834 wlan0 New Access Point/Cell address:Not-Associated
14:25:48.626865 wlan0 Scan request completed
14:25:48.639900 wlan0 Set Mode:Managed
14:25:48.643065 wlan0 Set Frequency:2.432 GHz (Channel 5)
14:25:49.301627 wlan0 New Access Point/Cell address:Not-Associated

Etc. Etc. Etc.
Output of iwconfig:

lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11abgn ESSID:"eduroam"
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Tx-Power=15 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

pan0 no wireless extensions.

description: Wireless interface
product: Wireless WiFi Link 5100
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: wmaster0
version: 00
serial: 00:21:6b:65:fb:96
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=iwlagn latency=0 module=iwlagn multicast=yes wireless=IEEE 802.11abgn
I have read trough many forumposts/wifidocs/other sources and now I give up. I will try to get some happy responses here :) Again a wlan wifi problem, yeaah! :)

June 15th, 2010, 02:30 PM
Oh forgot to mention, is a windows XP dualboot. Works fine under winXP.

June 17th, 2010, 01:55 PM
Apparently WPA2 has since some time been an issue with network-manager in certain versions. And even when I switched to the PPA ( https://launchpad.net/~network-manager/+archive/ppa ) to be able to update to the newest version I just got into more trouble. After update I could setup the connection but had no connection (couldn't ping/visit anything). I changed to the karmic PPA (because I read people who got it solved when changing to karmic and run into **** again when going to lucid..) which didn't solve it either.
By then I decided to give up all my configured networks (passwords etc.) in network-manager and just try WICD. And now I have no troubles at all.

This really got down my happy feelings about being a ubuntu user, it costed me so much extra time.