Wireless connection lost and the message "Authentication required by wireless network" keeps reappearing for no apparent reason

Here is a screen shot of the error message.

I should report that I have just the same problem... this is an Acer Aspire 9300, AMD Athlon 64x2, 2 GB DDR2, 528 Mb NVidia GeForce Go 6100, I think wifi is Atheros...

And I'm using an uptodate Ubuntu 9.10, upgraded from 9.04, upgraded from 8.10, upgraded from 8.04...

I have found out this problem has also been reported for the 64-bit version of Ubuntu Karmic. Here is the link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/483322

I've upgraded my kernel to Ubuntu Karmic 2.6.31-17-generic but this wifi connection problem still persists.

I have the same network manager issue (I think it's network manager, it could be a problem with wpa_supplicant, or the keyrings or something else).

I'm on Karmic, and my wireless driver is iwl3945 (Dell Latitude D820 intel wireless).

I install network manager and it connects for a few reboots. Randomly, it stops logging me into the wireless router (WPA2-PSK), and repeatedly prompts me for a password. I enter the password, but it doesn't connect.

At one point, I un-installed network manager and wpa_supplicant and re-installed it all, and it functioned for a few reboots again and then resumed the same password-prompting behaviour.

Does anyone have a fix for this, or any suggestions as to how to figure out what's going on?

I can't understand why network manager (if the problem is indeed with network manager) has been so buggy for so long, when the rest of the software for Ubuntu is so stable. Networking is the most critical part of any installation. If you can't connect to a network, you can't update any other part of the system.

Is it not being prioritised? Is it not glamourous enough to work on? Is it because the developers are at the mercy of proprietary wireless drivers?

I think I'm going back to wpagui if no one has any ideas (which also lost my settings, but at least would connect correctly if they were re-entered).

-CB

Exists in maverick, still. For me, it only happens on authorizations after the first time. I'm using

linux-image-2.6.35-6-generic 2.6.35-6.9
network-manager 0.8-0ubuntu3
dhcp3-client 3.1.3-2ubuntu4
wireless-crda 1.12
wpasupplicant 0.6.10-2

Hardware:
03:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300

Jul 6 21:41:18 hypatia NetworkManager: <info> (wlan0): device state change: 5 -> 6 (reason 0)
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0/wireless): asking for new secrets
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jul 6 21:41:18 hypatia NetworkManager: <info> (wlan0): device state change: 6 -> 4 (reason 0)
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jul 6 21:41:18 hypatia NetworkManager: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0/wireless): connection 'Auto cmiller' has security, and secrets exist. No new secrets needed.
Jul 6 21:41:18 hypatia NetworkManager: <info> Config: added 'ssid' value 'cmiller'
Jul 6 21:41:18 hypatia NetworkManager: <info> Config: added 'scan_ssid' value '1'
Jul 6 21:41:18 hypatia NetworkManager: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Jul 6 21:41:18 hypatia NetworkManager: <info> Config: added 'psk' value '<omitted>'
Jul 6 21:41:18 hypatia NetworkManager: nm_setting_802_1x_get_pkcs11_engine_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
Jul 6 21:41:18 hypatia NetworkManager: nm_setting_802_1x_get_pkcs11_module_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
Jul 6 21:41:18 hypatia NetworkManager: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jul 6 21:41:18 hypatia wpa_supplicant[907]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
Jul 6 21:41:18 hypatia kernel: [51074.408154] wlan0: deauthenticating from 00:18:e7:d3:98:f4 by local choice (reason=3)
Jul 6 21:41:18 hypatia NetworkManager: <info> (wlan0): supplicant connection state: associated -> disconnected
Jul 6 21:41:18 hypatia kernel: [51074.408609] cfg80211: All devices are disconnected, going to restore regulatory settings
Jul 6 21:41:18 hypatia kernel: [51074.408618] cfg80211: Restoring regulatory settings
Jul 6 21:41:18 hypatia kernel: [51074.408625] cfg80211: Calling CRDA to update world regulatory domain
Jul 6 21:41:18 hypatia kernel: [51074.417075] cfg80211: World regulatory domain updated:
Jul 6 21:41:18 hypatia kernel: [51074.417082] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Jul 6 21:41:18 hypatia kernel: [51074.417090] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 6 21:41:18 hypat...

Also happening here, in my two (different) laptops, both using Ubuntu 10.10, NetworkManager 0.8.1. Tested on kernels 2.6.34, 2.6.35, and 2.6.36.

The wifi I am connecting to has low signal, because the router is a bit far. I don't know if this is related or not. It uses WEP encryption. In other encrypted networks I have connected this problem is not happening.

Nonetheless, the connection keeps working perfectly in a netbook I have (Windows 7 Starter based). So, it is either driver or NetworkManager problem.

Attached is the output of lspci, lsusb and hwinfo, in case it can be of help.

This happens from suspending my laptop every time I'm fully up to date and running lucid 10.04

I have moved closer to the router, and the problem appears now way less frequently, even though it still happens.

So, I think that most definitely it is related to the low signal received. Nonetheless, the Windows computer works perfectly at lower signal quality.

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Hi. What's the status of this bug in Ubuntu 12.04?

I don't have this version on a computer with wifi any more, so I've
unsubscribed to the bug.

On Sun, Jul 1, 2012 at 4:54 AM, Thomas Hood <email address hidden> wrote:
> Hi. What's the status of this bug in Ubuntu 12.04?
>
> ** Summary changed:
>
> - Wifi Connection Lost - NetworkManager Wireless Network Authentication Bug
> + Wireless connection lost and the message "Authentication required by wireless network" keeps reappearing for no apparent reason
>
> ** Changed in: network-manager (Ubuntu)
> Status: New => Confirmed
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/490107
>
> Title:
> Wireless connection lost and the message "Authentication required by
> wireless network" keeps reappearing for no apparent reason
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/490107/+subscriptions

--
It's completely normal that you lose data on "Windows" platforms.
That's why you have a UNIX or Linux or BSD server for backups.
http://whylinuxisbetter.net/
http://releases.ubuntu.com/
http://netbsd.org/

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]