Arch Linux

smove

Member

From: Bremen, Germany

Registered: 2006-08-25

Posts: 10

Unable to assign channel to ipw2200

Hi,

since the guy in the flatshare my girlfriend lives in changed the channel of his ap i can´t connect with my ipw2200. My ipw2200 works well, i can search successfuly for other ap´s or stations but the ap of the flatshare couldn´t be found. So i have pluged in my other wlan device which is a usb with atmel-chipset and it´s able to connect and discover the ap. The problem that i have noticed is, that the channel the ap uses can´t be assigned to my ipw2200. The ap operates on 2.472 GHz but the highest channel i can assing to the ipw2200 is 2.417 GHz.

Why i´m not able to assign this channel to my ipw2200?

karsten

Member

Registered: 2006-07-14

Posts: 261

Re: Unable to assign channel to ipw2200

try typing in the channel manually, i.e.

# iwconfig essid YOURESSID channel # <--your channel number (not frequency)

karsten

Member

Registered: 2006-07-14

Posts: 261

Re: Unable to assign channel to ipw2200

try typing in the channel manually, i.e.

# iwconfig wlan0 essid YOURESSID channel # <--your channel number (not frequency)

smove

Member

From: Bremen, Germany

Registered: 2006-08-25

Posts: 10

Re: Unable to assign channel to ipw2200

2.472 seems to be channel 13. If i try to set channel 13 the following happens:

[root@sniz mov01]# iwconfig eth0 essid wg2 [...] channel 13
Error for wireless request "Set Frequency" (8B04) :
    SET failed on device eth0 ; Invalid argument.

smove

Member

From: Bremen, Germany

Registered: 2006-08-25

Posts: 10

Re: Unable to assign channel to ipw2200

Ok, there are only 11 channels available (only the us one) on my card. dmesg shows following:

ipw2200: Detected geography ZZM (11 802.11bg channels, 0 802.11a channels)

I have researched a little bit and i found a bug report that the geography is hardcoded in the driver and there is no detection of geogrphy but the last comment says 'fixed in 1.0.11' http://bughost.org/bugzilla/show_bug.cgi?id=673

So dmesg says there is version 'git-1.1.1' loaded so the problem shouldn´t apear?

Perhaps my hardware doesn´t support european channels? I don´t know on what the detection of geography depends if it isn´t hardcoded anymore. Could it be that my system is misconfigurated and thats the reason why it detects us-channels only?

I´m a bit confused..