Issues Constituent Group Listserv on behalf of Lee H
Badman
Sent: Thu 3/5/2009 8:16 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac OSX and 5Ghz
Great info, Phillipe. But how can I now do 600 Mbps at 50 times the distance if
my adapter won't do SGI? Perhaps some
Confirm what MCS rate you are connecting at, signal strength, and
noise. Is your Mac client really bonding (should have a channel number
with + or -1)? Make sure all of your data rates are enabled for the A
band as well.
user-111-123-111-1:~ $ /System/Library/PrivateFrameworks/
David,
Make sure that you have WMM enabled on the WLAN. This is under QoS on the WLAN
configuration on cisco WLC/WCS. It needs to be on to enable 802.11n rates.
Also, make sure wide-channel is enabled (40MHz).
To confirm what the Mac thinks is going on, enable the display of the WLAN icon
in
-...@listserv.educause.edu] On Behalf Of David Wang
Sent: Wednesday, March 04, 2009 9:00 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac OSX and 5Ghz
Looks like Apple is listening:
http://support.apple.com/downloads/AirPort_Client_Update_2009_001
About AirPort Client Update 2009-001
David,
In your output, the channel reading does not indicate bonding (channel
number followed by ,1 for above or ,-1 for below). Also, the SNR
listed in this output is excellent, this client should have an MCS
data rate of 14 or 15. Try changing the AP channel to anything but
161. I
@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac OSX and 5Ghz
Concerning the channel 161 issue...
While not specific to channel 161, there is an issue with the broadcom chipset
as installed in Apple and other products. The Cisco unified AP's broadcast a
world mode information item that the client
@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac OSX and 5Ghz
Concerning the channel 161 issue...
While not specific to channel 161, there is an issue with the broadcom chipset
as installed in Apple and other products. The Cisco unified AP's broadcast a
world mode information item that the client
Jeff,
Thanks for the specifics.
James
On Mar 4, 2009, at 4:59 PM, Jeffrey Sessler wrote:
Concerning the channel 161 issue...
While not specific to channel 161, there is an issue with the
broadcom chipset as installed in Apple and other products. The Cisco
unified AP's broadcast a world
Message-
From: The EDUCAUSE Wireless Issues Constituent Group Listserv on
behalf of Jeffrey Sessler
Sent: Wed 3/4/2009 4:59 PM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Subject: Re: [WIRELESS-LAN] Mac OSX and 5Ghz
Concerning the channel 161 issue...
While not specific to channel 161
William,
I have no answers, but would encourage you to vigorously engage your
local rep and ask for an ear in Apple's development. It took us a while,
but feels like they are starting to get that their products are actually
less than perfect on the WLAN.
-Lee
Lee H. Badman
Wireless/Network
Have you considered defining another SSID for high-speed wireless
communications? We use the Cisco 4404-100 Wireless LAN Controller
solution with 5.1.151.0 code and it allows us to set a radio policy of
802.11a only (and apparently 5 ghz n based on our testing) on a WLAN.
We have a
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