Need join to 13th channel via Airport

[howoarang]

Hi, I have problem with my Airport Extreme card to join on WLAN 13th channel (Europe wifi channels 1-13).
My AirPort Extreme Card is "Third-Party Wireless Card" 802.11b/g, chip Broadcom BCM4315 and it supports channels 1,2,3,4,5,6,7,8,9,10,11 only, but I need to join 13th channel.

Can somebody help me? I think, I need some modified driver.
THANKS!

[Imkantus]

Maybe try this:
http://mactip.blogspot.com/2008/12/channel-13-leopard-wireless-card-locale.html

[howoarang]

thanks for reply, but it doesnt resolve my problem. I dont know why...

look at this picture:
http://www.imageno.com/thumbs/20100112/7k66ukhfpl7r.jpg (http://www.imageno.com/7k66ukhfpl7rpic.html)

[Imkantus]

I could imagine this to be a limitation by Dell to make their prodcut suitable for outer european FCC rules. Does it work using an other OS? If not maybe ask the Dell support?

[00010]

Where did you obtain the card, the card may not support 13 channels as a hardware limitation, which means that you may have a shot if you can flash new firmware to the card as an update, but that would probably require access to a Windoze box.

00010

[howoarang]

Hi, under Windows XP and Windows 7 card supports channels for Europe 1-13, only under MacOSX it doesnt support 13 channels.

[00010]

Well you need to find a fix or patch then for your problem, but there has to be some way of enabling it, it may require alot of work though, I think if you modified the .kext file it may work, I have modified WIFI .kext files before to work with different device IDs for different revisions.


D.M

[Imkantus]

Weird thing is that my BCM4311 card (non-branded product) which I had orderd from the UK doesn't have this limit - at least not on 10.6.2

(And it's using them same Kernel Extension.)

[00010]

Ok, then maby its the card itself, maby a firmware update on the card?


00010

[howoarang]

I do not know how to patch or edit the kext.
But, I must edit IO80211Familiy.kext to work my BCM4135 wifi card, because original kext includes these vendors IDs: 4311, 4312, 4313, 4318, 4319, 431a, 4320 etc... and my card ID is 4315 which is not included in original kext, so I simply added this ID to original IO80211Family.kext and now it is working, but only on channels 1-11.

[00010]

That means that the device parameters need to be tweaked inside the kext, especially if it works fine under windoze with all 13 channels, This would be intresting to see, I would like to get more than 11 channels too.

00010

[00010]

Wouldn't it be easier to just change the channel your router/access point broadcasts on?

[howoarang]

Wouldn't it be easier to just change the channel your router/access point broadcasts on?

No. I want to join University Infrastructure at channel 13, in World is know as "Eduroam" network.

[lflashl]

i just got me a new wireless n" card today and it works out of the box! TP-Link TL-WN951N and can join channel 12,13 so maybe you need a new card?

[howoarang]

I am a pc user too, I have laptop dell d630 and I tried this card on windows xp and windows 7 too, everything wokring well with channel 1-13, but only under Mac OSX it does with channel 1-11 only

[howoarang]

Now, I am gonna to buy other wifi kard with chip Broadcom BCM4321 with 802.11n draft support, my question is: Will this new card supported by Max OSX ? (I have Snow Leo 10.6.2).

THANKS!

[howoarang]

Now, I have BCM4321 802.11a/b/g/n and still have problems with supporting channels 12, 13.
Now my card supports channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165, but 12 and 13 is not included.

This is from System profiler... AirPort:
Software Versions:
Menu Extra: 6.2 (620.24)
configd plug-in: 6.2 (620.15.1)
System Profiler: 6.0 (600.9)
Network Preference: 6.2 (620.24)
AirPort Utility: 5.4.2 (542.23)
IO80211 Family: 3.1 (310.6)
Interfaces:
en1:
Card Type: Third-Party Wireless Card
Supported PHY Modes: 802.11 a/b/g/n
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165
Wake On Wireless: Supported
Current Network Information:
Security: None
Other Local Wireless Networks:

Using application named WiFi Scanner I see, that my Country Code is set to US and I dont know, how to change it.

Please help.