#1740: Huge invalid nwid, no DHCP.
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Reporter: [EMAIL PROTECTED] | Owner:
Type: defect | Status: new
Priority: minor | Milestone:
Component: madwifi: other | Version:
Resolution: | Keywords:
Patch_attached: 0 |
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Old description:
> I have a Thinkpad T41p with Atheros wireless chipset. Mostly it works
> fine. I'm using Gutsy and NetworkManager (under gnome).
>
> Occasionally it will refuse to complete a connection to a network.
> iwconfig will show regsitration, but the "Rx invalid nwid" field
> increases by a few per second" and no DHCP responses are received, so I
> never get an IP level connection. Usually, a reboot fixes this.
>
> I have one site where it always seems to happen. iwlist ath0 scan gives
> me:
>
>
> ath0 Scan completed :
> Cell 01 - Address: 00:17:5A:5D:0B:E0
> ESSID:"eduroam"
> Mode:Master
> Frequency:2.412 GHz (Channel 1)
> Quality=15/70 Signal level=-80 dBm Noise level=-95 dBm
> Encryption keyn
> Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
> 11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
> 48 Mb/s; 54 Mb/s
> Extra:bcn_int=100
> IE: IEEE 802.11i/WPA2 Version 1
> Group Cipher : WEP-40
> Pairwise Ciphers (1) : TKIP
> Authentication Suites (1) : 802.1x
> IE: WPA Version 1
> Group Cipher : WEP-40
> Pairwise Ciphers (1) : WEP-40
> Authentication Suites (1) : 802.1x
> Extra:wme_ie=dd180050f2020101830003a4000027a400004 2435e0062322f00
> Cell 02 - Address: 00:14:F2:FC:87:10
> ESSID:"eduroam"
> Mode:Master
> Frequency:2.417 GHz (Channel 2)
> Quality=5/70 Signal level=-90 dBm Noise level=-95 dBm
> Encryption keyn
> Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
> 11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
> 48 Mb/s; 54 Mb/s
> Extra:bcn_int=100
> IE: IEEE 802.11i/WPA2 Version 1
> Group Cipher : WEP-40
> Pairwise Ciphers (1) : TKIP
> Authentication Suites (1) : 802.1x
> IE: WPA Version 1
> Group Cipher : WEP-40
> Pairwise Ciphers (1) : WEP-40
> Authentication Suites (1) : 802.1x
> Extra:wme_ie=dd180050f2020101830003a4000027a400004 2435e0062322f00
> Cell 03 - Address: 00:18:F8:AE:79:46
> ESSID:"CIRCA"
> Mode:Master
> Frequency:2.462 GHz (Channel 11)
> Quality=46/70 Signal level=-49 dBm Noise level=-95 dBm
> Encryption keyff
> Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
> 24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
> 12 Mb/s; 48 Mb/s
> Extra:bcn_int=100
> Cell 04 - Address: 00:14:7F:4B:6A:E3
> ESSID:"BTHomeHub-2C3D"
> Mode:Master
> Frequency:2.442 GHz (Channel 7)
> Quality=2/70 Signal level=-93 dBm Noise level=-95 dBm
> Encryption keyn
> Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
> 24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
> 12 Mb/s; 48 Mb/s
> Extra:bcn_int=100
> Extra:wme_ie=dd180050f2020101880003a4000027a400004 2435e0062322f00
>
> I can connect to "eduroam" on channel 1, but I'd rather connect to CIRCA.
> When I do, I get the excessive invalid nwid problem.
>
> Anyone know what is going on?
>
> Steve
New description:
I have a Thinkpad T41p with Atheros wireless chipset. Mostly it works
fine. I'm using Gutsy and NetworkManager (under gnome).
Occasionally it will refuse to complete a connection to a network.
iwconfig will show regsitration, but the "Rx invalid nwid" field increases
by a few per second" and no DHCP responses are received, so I never get an
IP level connection. Usually, a reboot fixes this.
I have one site where it always seems to happen. {{{iwlist ath0 scan }}}
gives me:
{{{
ath0 Scan completed :
Cell 01 - Address: 00:17:5A:5D:0B:E0
ESSID:"eduroam"
Mode:Master
Frequency:2.412 GHz (Channel 1)
Quality=15/70 Signal level=-80 dBm Noise level=-95 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:bcn_int=100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : WEP-40
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : 802.1x
IE: WPA Version 1
Group Cipher : WEP-40
Pairwise Ciphers (1) : WEP-40
Authentication Suites (1) : 802.1x
Extra:wme_ie=dd180050f2020101830003a4000027a400004 2435e0062322f00
Cell 02 - Address: 00:14:F2:FC:87:10
ESSID:"eduroam"
Mode:Master
Frequency:2.417 GHz (Channel 2)
Quality=5/70 Signal level=-90 dBm Noise level=-95 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:bcn_int=100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : WEP-40
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : 802.1x
IE: WPA Version 1
Group Cipher : WEP-40
Pairwise Ciphers (1) : WEP-40
Authentication Suites (1) : 802.1x
Extra:wme_ie=dd180050f2020101830003a4000027a400004 2435e0062322f00
Cell 03 - Address: 00:18:F8:AE:79:46
ESSID:"CIRCA"
Mode:Master
Frequency:2.462 GHz (Channel 11)
Quality=46/70 Signal level=-49 dBm Noise level=-95 dBm
Encryption keyff
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:bcn_int=100
Cell 04 - Address: 00:14:7F:4B:6A:E3
ESSID:"BTHomeHub-2C3D"
Mode:Master
Frequency:2.442 GHz (Channel 7)
Quality=2/70 Signal level=-93 dBm Noise level=-95 dBm
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:bcn_int=100
Extra:wme_ie=dd180050f2020101880003a4000027a400004 2435e0062322f00
}}}
I can connect to "eduroam" on channel 1, but I'd rather connect to CIRCA.
When I do, I get the excessive invalid nwid problem.
Anyone know what is going on?
Steve
Comment (by mrenzmann):
Two pointers for the beginning: [wiki:FAQ/SignalTooStrong] (this seems to
apply to the CIRCA cell) and [wiki:InvalidNWID].
In cases when you don't get a DHCP lease, try the following:
1. Increase the distance between AP and client, so that the signal
strength is weakened a bit.
2. Assign an IP address manually.
Does one of these hints help? Which?
What version of MadWifi are you using?
--
Ticket URL: <http://madwifi.org/ticket/1740#comment:1>
madwifi.org <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity
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