2012-09-26 10:19:32

by Alper Yilmaz

[permalink] [raw]
Subject: 802.1X can associate but can not connect

Hi,
Not sure if this is the right mail-list but I was referred to this
mail-list to seek help.

I already asked for help in #linuxwireles chat room and Ubuntu Forums and
didn't get any help.

I copy pasted the question from forum post below, I would like to refer to
URL of the forum post but list-serv does not accept URL in email. (How can
I include link to forum post?)
The forum post contains all necessary information (system info, logs, etc.).

----- * -----
I need desperate help regarding my wireless connection problem. I cannot
connect to my university's wireless network which uses WEP802.1X security.
When I switch to Windows Vista, I can connect to university wireless
network.
But when I use Ubuntu, I cannot connect.
Also, when I use Ubuntu, I can connect to other wireless networks either
non-password-protected or WEP password protected networks. But I cannot
connect to enterprise networks.

The problem seems not related to Ubuntu per se, but one of the network
related packages (ie. wpa_supplicant, dhclient, etc).
I need help from an expert. I hope the right person reads this post and
helps me.

If you want me to perform debugging tests or tasks please let me know.

----- * -----

Thanks,
alper


2012-09-26 10:44:13

by Kalle Valo

[permalink] [raw]
Subject: Re: 802.1X can associate but can not connect

Alper Yilmaz <[email protected]> writes:

> Not sure if this is the right mail-list but I was referred to this
> mail-list to seek help.
>
> I already asked for help in #linuxwireles chat room and Ubuntu Forums and
> didn't get any help.
>
> I copy pasted the question from forum post below, I would like to refer to
> URL of the forum post but list-serv does not accept URL in email. (How can
> I include link to forum post?)

Never found any problems adding an URL. Just make sure that you don't
use HTML.

> The forum post contains all necessary information (system info, logs, etc.).

Is this the post:

http://ubuntuforums.org/showthread.php?t=2060708

--
Kalle Valo

2012-09-27 13:41:03

by Kalle Valo

[permalink] [raw]
Subject: Re: 802.1X can associate but can not connect

Hi Alper,

please don't mail me privately. I only give public support so that the
whole Linux community can benefit.

Alper Yilmaz <[email protected]> writes:

> I tried live USB with Ubuntu 10.04.4 and wireless worked great.

Ok, so this is a regression in Ubuntu. That's good to know.

> Then, I tried to install dhclient, wpasupplicant and network-manager
> of the 10.04 version to my current installation (12.04). I found
> correct deb files and installed them. But after one point, i couldn't
> deal with dependencies.

It's very difficult to install older components to a newer distribution.
Don't do that unless you know what you are doing.

> Which email list is most suitable to ask for help regarding dhclient
> and wpasupplicant?

It depends where the problem is, we still don't know that. Did you try
what I suggested in my previous email? That would help to pinpoint
what's broken.

wpasupplicant mailing list is [email protected], but I have no idea
about dhclient. I recommend filing a bug to Ubuntu as this clearly is a
regression and trying to investigate more where the problem is.

--
Kalle Valo

2012-09-26 17:16:05

by Kalle Valo

[permalink] [raw]
Subject: Re: 802.1X can associate but can not connect

Kalle Valo <[email protected]> writes:

>> The forum post contains all necessary information (system info, logs, etc.).
>
> Is this the post:
>
> http://ubuntuforums.org/showthread.php?t=2060708

(Alper confirmed privately that the URL is correct.)

>From the logs it seems that wifi authentication was succesful:

Aug 22 22:18:44 dv7 wpa_supplicant[4528]: CTRL-EVENT-EAP-SUCCESS EAP
authentication completed successfully
Aug 22 22:18:44 dv7 wpa_supplicant[4528]: CTRL-EVENT-CONNECTED -
Connection to 00:25:46:83:

But dhcp failed:

Aug 22 22:19:23 dv7 dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255
port 67 interval 12
Aug 22 22:19:29 dv7 NetworkManager[4519]: <warn> (wlan0): DHCPv4 request
timed out.

>From this I can't yet conclude where the problem is. It might a problem
with dhcp client/server or it might be a lower level problem in wifi
(driver/wpasupplicant).

Few things I recommend to try:

o manual IPs (for example, use same settings as windows gets from the dhcp
server)
o disable network-manager and run wpasupplicant manually
o try different dhcp client, like udhcpc

--
Kalle Valo