Dear Group, I have two Linux laptops with the latest updates to the most recent LTS Ubuntu distribution. 1). Samsung netbook. This uses the Broadcom wl wifi driver and works fine all the time everywhere. 2). Lenovo W520. This uses the iwlwifi driver and works on every network I have tried it on except Latrobe University. I have tried both LTUwireless2 or Eduroam. It is impossible to keep a connection to either of these (in La Trobe) for longer than about 2 minutes. Outside La Trobe Eduroam works just fine. The configuration settings are the same on both boxen. Up until a few months ago the W520 worked fine on the La Trobe network. IT support claim that no Linux box can connect to their wifi or ever could. As I was using it with the Samsung half an hour ago I know this is false. Obviously something has changed but where to start looking, is it my driver, my hardware or has something changed on the network and if so what. Ideas most welcome Stripes
On 25/01/13 12:14, stripes theotoky wrote:
Dear Group,
I have two Linux laptops with the latest updates to the most recent LTS Ubuntu distribution.
1). Samsung netbook. This uses the Broadcom wl wifi driver and works fine all the time everywhere.
2). Lenovo W520. This uses the iwlwifi driver and works on every network I have tried it on except Latrobe University. I have tried both LTUwireless2 or Eduroam. It is impossible to keep a connection to either of these (in La Trobe) for longer than about 2 minutes. Outside La Trobe Eduroam works just fine. I suspect LTUwireless2 and Eduroam are effectively the same network but uses different user authentication.
R U able to try a second USB wifi adapter on the Lenovo, and see how it works? That would eliminate the networking stack on your laptop and point to a problem between the iwlwifi driver and the LaTrobe network.
The configuration settings are the same on both boxen.
Up until a few months ago the W520 worked fine on the La Trobe network. IT support claim that no Linux box can connect to their wifi or ever could. As I was using it with the Samsung half an hour ago I know this is false.
Denial is useful sometimes!!
Obviously something has changed but where to start looking, is it my driver, my hardware or has something changed on the network and if so what.
As I discovered recently, unattended upgrades on Ubuntu can lead to problems! .. Do you have unattended upgrade set up on the laptop? But I am willing to bet something changed on the network. Can you try booting a LiveCD on the Lenovo?
Ideas most welcome
Stripes
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Outside La Trobe Eduroam works just fine. I suspect LTUwireless2 and Eduroam are effectively the same network but uses different user authentication.
I thought so too especially as a visitor from Spain can't access Eduroam here but could two days ago in Madrid. Eduroam should be the same world wide but obviously there is something screwy with this one.
R U able to try a second USB wifi adapter on the Lenovo, and see how it works?
I don't have one, I will see if I can borrow one and try that.
That would eliminate the networking stack on your laptop and point to a problem between the iwlwifi driver and the LaTrobe network.
I don't believe it can be the network stack as this box has been connected by wifi to a 3COM wireless router for the last 2 days and the connection is rock solid, but it is always worth checking.
IT support claim that no Linux box can connect to their wifi or ever could. As I was using it with the Samsung half an hour ago I know this is false.
Denial is useful sometimes!!
Isn't it just.
As I discovered recently, unattended upgrades on Ubuntu can lead to problems! .. Do you have unattended upgrade set up on the laptop?
No I upgrade them by hand about twice a week and mostly do them both at the same time.
But I am willing to bet something changed on the network.
Me too, but finding out what could be fun.
Can you try booting a LiveCD on the Lenovo?
Next time I am in the office I will try that. Stripes
Ideas most welcome
Stripes
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Daniel Jitnah -
stripes theotoky