Feisty regression: wifi not working (rt2500, wg54t)

Thank you for your report. Could you try the following please.

open a terminal and type the following.

sudo cp /etc/network/interfaces /etc/network/interfaces.bak

then the following.

sudo gedit /etc/network/interfaces

scroll down the text till you get to the auto ra0 .....

Delete the two lines with ra0 in then save the file. then reboot your laptop. If that doesn't work you can do.

sudo rm /etc/network/interfaces

then

sudo mv /etc/network/interfaces.bak /etc/network/interfaces

and reboot that will reset to your original settings.

I got as far as editing /etc/network/interfaces - it does not contain anything about ra0 at all! Should it? Current contents are:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto eth1
iface eth1 inet dhcp

auto eth2
iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp

auto wlan0
iface wlan0 inet dhcp

In that case I would remove one at a time starting with eth1 as eth0 is normally wired network. Basically network manager will only manage a wifi card that isn't already managed so you need to remove the cards details from interfaces so that network manager can use it.

The rt2500 part of this bug appears to be bug 78037. The by-hand fix there works (I need to do "sudo dhclient3 ra0" afterwards, and I have to apply the bug fix again by hand if I unplug the card).

The Netcomm card is actually a Netcomm 11g, and uses the prism54 driver. The same by-hand fix there works for this. Success!

So there's a workaround, if not an automatic solution. However, the same problem on different drivers suggests the cause might be at a higher level than the kernel.

okay that's super I will pass this info onto the devs have you got the links for the solutions please? If so can you paste them here many thanks.

As I noted above, I got it from bug 78037 :-) When starting up or plugging in a card, do:

sudo ifconfig [interface] down
sudo iwconfig [interface] essid [essid] key [key]
sudo ifconfig [interface] up
sudo dhclient3 [interface]

I also listed this on the forums, with a note for people to add other chips this works for: http://ubuntuforums.org/showthread.php?p=2092813

Many thanks.

--
Seek That Thy Might Know

The ralink open source drivers are currently a mess in feisty. The rt2400/rt2500/rt2570 drivers are built from the legacy source and the rt61pci/rt73usb drivers are built from rt2x00 source. Both source packages date back to the first of December. The legacy rt2500 driver is known not to work with Network Manager. To avoid having to manually start my network every time I boot I had to remove NM.

I have a Foxconn card that uses the rt2500 driver. In Dapper and Edgy I was able to get the wireless working if I disabled my onboard NIC and manually entered the wireless network name in Network Admin. I'm currently trying Feisty Herd 5 and I have been unable to get the new network manager to connect to any wireless networks (even though it sees them). If I disable the onboard NIC and the roaming mode and select a wireless network in Network Admin, I am able to connect. ...but the new network manager icon says there is no network connection. Hopefully this is the appropriate place for this post.

Just download and installed feisty beta and my Rt2500 wifi card doesn't work with network manager. By removing network manager using System>Preferences>Sessions and manually entering details into System>Administration>Network the network does work. (This is all after I had to disable IPv6 as per http://ubuntuforums.org/showthread.php?t=87798 to get any connection - It just timed out before) both of these just annoyances for me but would be tricky for a newbie.

Just downloaded and installed feisty beta and my Rt2500 wifi card doesn't work with network manager. By removing network manager using System>Preferences>Sessions and manually entering details into System>Administration>Network the network does work. (This is all after I had to disable IPv6 as per http://ubuntuforums.org/showthread.php?t=87798 to get any connection - It just timed out before) both of these just annoyances for me but would be tricky for a newbie.

"Supports unencrypted and WEP networks when used with NetworkManager. While the driver supports WPA, it does not use Linux Wireless Extensions for WPA support, which is required for NetworkManager."

From http://live.gnome.org/NetworkManagerHardware

I'd say, report a seperate bug about rt2500 not working with network-manager.

Also, it is important if it worked with prior Feisty kernel versions. If it did, file the bug against linux-source-2.6.20.

If it never worked with network-manager, file a bug against network-manager.

also see Bug #37120

Hello Folks!

I do have dwl-g122 rev B1. same story wep works fine, open network works fine, wpa it's hell on earth impossible to make it work I am using Kubuntu 7.04, so I am asuming it's the driver,
I tried wpa supplicant don't know what else to do. Zydas zd1211rw works with WPA fine...

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!