Ubuntu

Hidden SSID WLAN doesn't work under Ubuntu.9.10 on T500 with Intel Wireless WiFi 5100AGN REV=0x54

Asked by Kris

Hi,
I've recently upgraded to Karmic.

Hardware is OK - Lenovo ThinkPad T500, dual boot Ubuntu/Vista.
Under Vista everything working fine.
Under Ubuntu I'm unable to connect to my home wireless network which has hidden SSID and WPA-PSK/TKIP password.
If I change the router settings to enable the SSID broadcast, then Ubuntu has no problems with this WiFi connection - same password/WPA-PSK.

Thus, I assume, that the problem is only about connecting to hidden SSID networks with WPA-PSK/TKIP passwords.
I know, that hidden SSID is not helping to much with security, but I still want to have SSID broadcasting turned-off.

Could you please advise, how to solve the problem?

Thank you in advance.

Regards,
Kris

P.S.
From my dmesg:
[ 11.319473] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27k
[ 11.319477] iwlagn: Copyright(c) 2003-2009 Intel Corporation
[ 11.319964] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 11.319974] iwlagn 0000:03:00.0: setting latency timer to 64
[ 11.320195] iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 5100AGN REV=0x54
[ 11.356720] iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[ 11.356784] alloc irq_desc for 32 on node 0
[ 11.356786] alloc kstat_irqs on node 0
[ 11.356807] iwlagn 0000:03:00.0: irq 32 for MSI/MSI-X
[ 11.635891] cfg80211: World regulatory domain updated:
[ 11.635894] (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 11.635898] (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 11.635902] (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 11.635905] (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 11.635908] (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 11.635911] (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 11.654517] phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 20.832115] iwlagn 0000:03:00.0: firmware: requesting iwlwifi-5000-2.ucode
[ 20.927766] iwlagn 0000:03:00.0: loaded firmware version 8.24.2.12
[ 21.074778] Registered led device: iwl-phy0::radio
[ 21.074805] Registered led device: iwl-phy0::assoc
[ 21.074827] Registered led device: iwl-phy0::RX
[ 21.074846] Registered led device: iwl-phy0::TX
[ 21.122041] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 23.343363] cfg80211: Found new beacon on frequency: 2472 MHz (Ch 13) on phy0

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Revision history for this message
Axel Hosemann (axel-hosemann) said : 		#1

Hi all,
it seems to be a new old problem with the network-manager: I didn't get it to work with hidden SSID WiFi access points neither with Ubuntu 7.10 nor with 8.04
I was happy, that the bug has been obviously fixed in 8.10, because network-manager worked well since then with my access point.
But now the problem is back again:
There are two Dell notebooks on the table in front of me. One is running Ubuntu 8.10 working perfectly well and one is running 9.10 whith a network manager, that shows exactly the erroneous behaviour which Kris already described.

Regards,
Axel

Revision history for this message
Kris (kpaz) said : 		#2

Ok,
thank you Axel for test and confirmation.

So it seems that we have confirmed HIDDEN SSID WLAN Connection Error on different hardware.

Could anybody help with resolving the issue?

Regards,
Kris

Revision history for this message
Ted Laurent (tedlaur) said : 		#3

FYI: I am also experience this problems with this at work. A Windows XP connects to the same network with no problem.

Revision history for this message
Kris (kpaz) said : 		#4

I've created the bug #468741: https://bugs.launchpad.net/ubuntu/+bug/468741 - and linked it to this conversation.
The bug is already confirmed by many people with different hardware - eg.:

---

Charlie:
Same problem here, machine is HP 550, with Intel PRO/Wireless 4965 AG. The versions 8.10 and 9.04 worked flawlessly. I've updated to Karmic this morning and now no wireless. Even when I get it working without a "hidden" SSID after resume from suspend or stanby it can't connect anymore.
Snip...

Charlie

---

Craig:

Same problem on Toshiba L305 with Atheros AR5007EG wireless with Karmic 64-bit. Unhide SSID and I'm able to connect.

Regards
Craig

---

Ömer ÜCEL:

Same problem on LB RD510

Device
01:00.0 Network controller: RaLink RT2860

---

So,
it seems to be a general network-manager error in the Ubuntu 9.10 release.

What to do next?
- bug is already reported and registered, but who is going to control the fix development process and how?
- I'm not familiar with Ubuntu support practice and procedures
- so how to move forward the case?

Regards,
Kris.

Revision history for this message
dhsja sian (suzzo76) said : 		#5

This is exactly the similar issue which I am also facing here and I want to share https://toolhutt.com/best-cnc-router/ details you can visit here.

Revision history for this message
Launchpad Janitor (janitor) said : 		#6

This question was expired because it remained in the 'Open' state without activity for the last 15 days.