What do you mean?
Changing the channel configuration on "iwconfig" will lower my attenuation?

Here is some more information:

$ modprobe bcm43xx
$ dmesg

bcm43xx driver
ACPI: PCI Interrupt 0000:05:02.0[A] -> GSI 20 (level, low) -> IRQ 20
bcm43xx: Chip ID 0x4318, rev 0x2
bcm43xx: Number of cores: 4
bcm43xx: Core 0: ID 0x800, rev 0xd, vendor 0x4243
bcm43xx: Core 1: ID 0x812, rev 0x9, vendor 0x4243
bcm43xx: Core 2: ID 0x804, rev 0xc, vendor 0x4243
bcm43xx: Core 3: ID 0x80d, rev 0x7, vendor 0x4243
bcm43xx: PHY connected
bcm43xx: Detected PHY: Analog: 3, Type 2, Revision 7
bcm43xx: Detected Radio: ID: 8205017f (Manuf: 17f Ver: 2050 Rev: 8)
bcm43xx: Radio turned off
bcm43xx: Radio turned off
bcm43xx: PHY connected
bcm43xx: Microcode rev 0x127, pl 0xe (2005-04-18  02:36:27)
bcm43xx: Radio turned on
bcm43xx: Radio disabled by hardware
bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
bcm43xx: Chip initialized
bcm43xx: 32-bit DMA initialized
bcm43xx: Keys cleared
bcm43xx: Selected 802.11 core (phytype 2)
ADDRCONF(NETDEV_UP): eth1: link is not ready
bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
bcm43xx: Radio hardware status changed to enabled

$ iwconfig eth1 essid "spot_piso2"
$ tail /var/log/messages

Oct 15 13:45:18 lisa bcm43xx: ASSERTION FAILED (radio_attenuation <
10) at: drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
Oct 15 13:45:19 lisa SoftMAC: Associate: Scanning for networks first.
Oct 15 13:45:20 lisa SoftMAC: Scanning finished: scanned 13 channels
starting with channel 1
Oct 15 13:45:20 lisa SoftMAC: Queueing Authentication Request to
00:0c:41:14:e3:fb
Oct 15 13:45:20 lisa SoftMAC: Cannot associate without being
authenticated, requested authentication
Oct 15 13:45:20 lisa SoftMAC: Sent Authentication Request to 00:0c:41:14:e3:fb.
Oct 15 13:45:20 lisa SoftMAC: Open Authentication completed with
00:0c:41:14:e3:fb
Oct 15 13:45:20 lisa SoftMAC: sent association request!
Oct 15 13:45:20 lisa SoftMAC: associating failed (reason: 0xa)!

$ iwconfig eth1

eth1      IEEE 802.11b/g  ESSID:"spot_piso2"  Nickname:"Broadcom 4318"
          Mode:Managed  Frequency=2.437 GHz  Access Point: Invalid
          Bit Rate=1 Mb/s   Tx-Power=18 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Link Quality=0/100  Signal level=0 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

$ dhcpcd eth1
$ tail /var/log/messages

Oct 15 13:44:25 lisa dhcpcd[4594]: eth1: dhcpcd 3.0.16 starting
Oct 15 13:44:25 lisa dhcpcd[4594]: eth1: hardware address = 00:14:a5:71:28:77
Oct 15 13:44:25 lisa dhcpcd[4594]: eth1: broadcasting for a lease
Oct 15 13:44:45 lisa dhcpcd[4594]: eth1: timed out
Oct 15 13:44:45 lisa dhcpcd[4594]: eth1: exiting

On 10/15/07, Dan Farrell <[EMAIL PROTECTED]> wrote:
> On Mon, 15 Oct 2007 13:48:23 +0000
> "Eduardo Otubo" <[EMAIL PROTECTED]> wrote:
>
> > Hi everyone,
> >
> > I am running a kernel-2.6.23 and wifi bcm43xx on my Compaq Presário
> > v2000. And my Wifi doesn't work. My module is compiled built-in, and
> > when I start my interface:
> >
> > $ ifconfig eth1 up
> >
> > I have this on my dmesg:
> >
> > bcm43xx: PHY connected
> > bcm43xx: Microcode rev 0x127, pl 0xe (2005-04-18  02:36:27)
> > bcm43xx: Radio turned on
> > bcm43xx: Radio enabled by hardware
> > bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
> > drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
> > bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
> > drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
> > bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
> > drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
> > bcm43xx: Chip initialized
> > bcm43xx: 32-bit DMA initialized
> > bcm43xx: Keys cleared
> > bcm43xx: Selected 802.11 core (phytype 2)
> > bcm43xx: ASSERTION FAILED (radio_attenuation < 10) at:
> > drivers/net/wireless/bcm43xx/bcm43xx_phy.c:1489:bcm43xx_find_lopair()
> >
> > I can connect on SOME networks, encrypted or not. I mean, I do
> > connect, but I dont recieve any DHCP packs. When I connect (with DHCP,
> > or not) I keep connected for a little time, then the link just falls.
> >
> > Any idea?
> >
> Hmm.   So the radio attenuation is too high?
> here:
> http://lists.berlios.de/pipermail/bcm43xx-dev/2006-October/003000.html
> they recommend switching your network to a different channel.
> --
> [EMAIL PROTECTED] mailing list
>
>


-- 
Eduardo Otubo
Linux Registered User #424252
http://z3r00.blogspot.com/

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