Disable 802.11n in 10.5?

It seems that the 802.11n in the MBP performs badly with some access points from random vendors in places I visit routinely, whereas the Core Duo MBP's g card sitting 3 feet away works fine.
Is there a way to force Leopard to fall back to g even if n is available?

I am having the same trouble! And I could NOT find a method on the Mac side to force it down to G.
But at home, I have forced my Wireless router to disable N and use only G.
This seemed to correct/stabilize my Leopard trouble, but at the expense of all the other N machines on the network (4 other PCs)..
It is for sure a Leopard trouble.. Never did I have an issue with Tiger!
APPLE PLEASE FIX THIS STUFF.. IT IS KILLING US!!!! AT LEAST PROVIDE US A WAY TO AFFECT THE TROUBLE!
I, like Djbrashear, would sure like to know how to correct this on the client side, and not have to affect the complete network.
I know this is user to user, but come on.. We are not magicians!
Respectfully,
Chris Aiken
Aiken Development LLC

Similar Messages

Disable 802.11n - Force MacBook to use 802.11g

Hello Everyone,
I'm searching for a possibilty to disable 802.11n on my MacBook. I want it to use the G standard instead.
We are using a NETGEAR wn802Tv2 Accesspoint in our office. I can connect to the Router, if the Router is in bg-mode. But connection fails when I try to connect, when the router is in ng-mode. Snow Leopard sys the password is wrong. But it is correct.
I'm not allowed to change the Accesspoint permantly to bg-mode. So I need a possibility to force my MacBook to operate in 802.11g mode.
Im using Snow Leopard 10.6.2 on the new Uniboy MacBook.
Thanks in Advance
Zoidberg

There is no way I am aware of in Mac OS X to force an 802.11n-capable AirPort card to only use 802.11b/g mode.

Aironet Autonomous 1252 CLI command 802.11n disable

hi,
I am using Aironet Autonomous 1252 AP. The version used is:
Cisco IOS Software, C1260 Software (AP3G1-K9W7-M), Version 12.4(25d)JA1, RELEASE SOFTWARE (fc1)
I want to disable 802.11n on 2.4GHz interface. Please tell the CLI command to do this.
Thanks in advance.
uv.

Why you want to disable 802.11n data rates ?
There are few other ways as well. For 802.11n you should have following
1. WMM enable
2. either Open Authentication or WPA2/AES
So if you are not using 1 & 2 both, you won't get 802.11n data rates. Refer this
https://supportforums.cisco.com/discussion/12078656/aironet-ap-1252-how-use-80211g-only
HTH
Rasika
**** Pls rate all useful responses ****

AirPort Extreme 802.11n (4th Generation) no longer recognized by iPhone 4S

I'm a new community member so please forgive me if this question has been asked and answered and I didn't see it. DirectTV came to troubleshoot a DVR cinema connection device that had been wirelessly connected to my AirPort Extreme without incident since the DirectTV device was installed 6 months ago but stopped talking to the AirPort last week. The DirectTV technician asked me to unplug then plug back in the AirPort. Now, my iPhone 4S will no longer recognize the AirPort. The AirPort is not recognized in the AirPort Utility on my iPhone, but if I run the AirPort Utility on my iPad 2, it is found. I can see the AirPort on my wifi settings on my phone but I can no longer connect to the network. The iPad and my wife's iPhone 5 connects to wifi just fine. Also a windows 8 laptop which was previously able to connect to the AirPort can no longer connect. And, of course, the DirectTV device still will not connect. I am stumped. Please help. Thanks.

OK, two possible leads:
1) Using the AirPort Utility, I disabled 802.11n, setting the AirPort Extreme to b/g only. This seemed to help— I didn't fall off the network all afternoon. (Setting it to 'n' only did not work, unfortunately, or else that would have been better, since it would have let me take advantage of the faster speeds for Time Machine to the shared disk)
2) Soon thereafter, for seemingly independent reasons, we starting having trouble with our DSL connection. We reset the AEBS to factor settings, which didn't solve the DSL problem (had to get a Windstream technician out for that), but since that reset, I've been connected with 802.11a and the MBP hasn't fallen off the wireless network once.
We'll see how it holds up, but for now, the recommendation seems to be first to reset the AEBS settings to factory default, and then try disabling 802.11n...

Airport Extreme 802.11n (4th Generation) vs. MBP 2006. The MBP is losing :(

GRRRRRRRRR— I feel like this is a version of a problem I see repeated here endlessly, but none of the threads I see about it is quite the same, or fixes my problem.      We have a network with:
Airport Extreme 802.11n (4th generation), connected to DSL modem. Firmware 7.5.2
MBP 2006, running OS 10.6.7 ****
MBP 2008, running OS 10.5.x
ipads, iphone, shared printer, drive, etc.
Everything works fine EXCEPT the MBP 2006. It connects to the network, works for a while, and then after a certain amount of time (anywhere between a minute and several hours) it's dropped. The menu bar still shows a connection and full signal, but there's no connection (TCP or afp) and when I launch the Aiport Utility, it just says that no base stations can be found.   The menu bar seems to be lying. Using the menu to turn Airport off and back on (or sleeping the laptop) works to reestablish the connection.
I do not have this problem with the MBP 2006 on other wireless networks (at work, or at my other home in another city). Just with the Airport Extreme
I've tried changing the channels, disabling IPv6 on the laptop and on the Airport Extreme, setting up a manual DHCP address, and changing the setting for "radio mode" of the base station from Automatic to 802.11a/n - 802.11b/g/n.   I also read that there might be troubles with "mixed" networks with both 802.11g and 802.11n, so I upgraded the Airport card in my MBP 2006 to an AirPort Extreme 802.11 a/b/g/n, which made disk sharing much faster when it's working, but didn't put an end to the cut-outs
Hjalp? Why does the Airport Extreme keep dropping my MBP 2006 (or vice versa)? Are there other things I should be changing or disabling?

OK, two possible leads:
1) Using the AirPort Utility, I disabled 802.11n, setting the AirPort Extreme to b/g only. This seemed to help— I didn't fall off the network all afternoon. (Setting it to 'n' only did not work, unfortunately, or else that would have been better, since it would have let me take advantage of the faster speeds for Time Machine to the shared disk)
2) Soon thereafter, for seemingly independent reasons, we starting having trouble with our DSL connection. We reset the AEBS to factor settings, which didn't solve the DSL problem (had to get a Windstream technician out for that), but since that reset, I've been connected with 802.11a and the MBP hasn't fallen off the wireless network once.
We'll see how it holds up, but for now, the recommendation seems to be first to reset the AEBS settings to factory default, and then try disabling 802.11n...

Wireless Connectivity Issue with 802.11n.

We have a 5508 Controller and sixteen 1142 APs.
Several of our laptops were experiencing connectivity issues over Wireless. Older laptops that do not support 11n are not having any problems.
I disabled 802.11n for both 'a' and 'b/g' in the Controller. Now the newer laptops connect with no issues.
They would in fact connect to the APs while 11n was available, just no Internet Access - (cannot ping DG, etc). Disabling/Enabling the laptop WL adapter would allow brief access (sometimes), but they'd quickly lose Internet Access once again.
Our WLANs are configured for WPA2/AES.
This looks like a 802.11n configuration issue at either the Controller or the Laptops (or both). Both are using the Default settings for 801.11n.
Any recommendations for correcting this? Are there best practice guidelines for configuring 802.11n?
Thanks.
- Jay

Configure 802.11n on the WLC
http://www.cisco.com/en/US/customer/products/ps6366/products_tech_note09186a0080a3443f.shtml

Upgrading T61 NIC -- 4956agn (n-disabled) -- to 802.11n

I have a T61 7659-12U. According to the Lenovo specs and what I see using Windows Device Manager, this -12U version of model 7659 comes with the Intel 4965agn wireless card (n-disabled). I am therefore only able to use 802.11g wireless connections, not 802.11n.
The basic specs for the 7659 model indicate that it supports several types 802.11n wireless cards; however, I see nothing in Lenovo specs that show whether this capability applies to all versions of the 7659, or only some versions.
Is it possible for me to just buy and install a Lenovo-approved n-level card in my -12U system -- does my system have all the motherboard connections, antenna capabilities, etc. to support an internal 802.11n NIC, or do I need to use an external PCMCIA wireless card to get 802.11n capability.??
Message Edited by nlitell on 03-06-2009 11:39 PM
T410 2522-K4U QuadCore Intel i7 Processor 8GB RAM 320GB SATA HDD
64-bit Windows7 Pro, with Windows Virtual XP (as included under W7 license)
D-Link 655 Wireless Network WEP encryption MAC Filtering
-- Both 802.11b and g adapters on various network components
Solved!
Go to Solution.

I finally got a Lenovo trouble ticket opened on this, and the answer was yes, I could upgrade the NIC to an N-level card. The antenna and software already support n-level operation.
Apparently Intel makes just one basic 4956 chip design, and then cripples the n-level operation on some of them for installation in lower-cost versions of specific computers. The basic T61 7659 box supports a variety of NICs, and the configuration version (12U in my case) just indicates which mix of options (disk size, NIC, etc.) is installed in that particular computer. The 12U just contains a cheaper set of options than other T61s.
T410 2522-K4U QuadCore Intel i7 Processor 8GB RAM 320GB SATA HDD
64-bit Windows7 Pro, with Windows Virtual XP (as included under W7 license)
D-Link 655 Wireless Network WEP encryption MAC Filtering
-- Both 802.11b and g adapters on various network components

Broadcom 802.11n Network Adapter not working on Windows 7 64bit

As the title suggests, my laptop (Alienware m17x) is installed with the Broadcom 802.11n Network Adapter and Windows 7 64bit Home Premium. I have had several other driver incompatibility issues with Windows 7, but those I have slowly been able to resolve. This however just cropped up after two months of successful use. Yesterday it started failing to connect to the internet, telling me that no wireless connections are available. I live in a dorm, and everyone else on my floor has successful wireless, including my Ipod Touch, PS3 and XBox 360. I called Alienware/Dell Support and we spent hours trying to fix the problem and all look well until I rebooted my laptop this morning and the same issue reappeared. When I reboot my laptop, all I get is a notification that no networks appear in range. If I uninstall the broadcom chip and let windows install it after a boot up it works until the machine is rebooted a second time. I have tried over a dozen windows 7 drivers for the chip, and about half a dozen vista drivers and they all have the same results, works on the first boot, fails every time after that

Just registered to say, on an Alienware M17x system as well running Windows 7 Ultimate, here is a link to a solution that worked exactly for me:
http://forum.notebookreview.com/alienware/436486-guide-properly-solve-wireless-connection-problems-m17x.html
All I did was section I.a. If the link is down, I copied the only section that I needed to follow out of this guide, in order to get my wireless to work repeatedly without having to uninstall the wireless driver every single reboot. Now it works perfectly,
already connected to a wireless network on startup.
I.a. Disable Device sleep on disconnect
Some newer Nvidia Ethernet drivers have a feature called Device sleep on disconnect. This is the culprit. Normally, it should only put the Ethernet adapter to sleep when the cable is disconnected, but it's buggy and thus kills the wireless connection as
well.
Follow these steps to disable this feature on your Nvidia Ethernet Adapter:
1. Open the Windows Device Manager by hitting Win+Pause, then click on Device Manager on the left side.
2. Double-click on Network adapters.
3. Double-click on NVIDIA nForce Networking Controller (yes, that's the wired Ethernet adapter indeed).
4. Click on the Advanced tab.
5. Select Device sleep on disconnect.
6. Set the Value to Disabled.
7. Click OK and wireless should work again (might require a reboot afterwards, but probably not).

Satellite Pro A200-16YT - Wireless adapter card upgrade to 802.11n

Satellite Pro is A200-16YT (PSAE1E) with Windows XP Professional SP3.
I have been trying to increase my existing 54 Mb/s wireless network speed by replacing the existing Atheros AR5007-EG 802.11a/b/g with the faster 802.11n adapter.
The Atheros driver is v9.2.0.439 (04/08/2011) which I believe is the latest. I have tried to install an Azurewave AR5BXB72 (Atheros AR5008) as a replacement, but with no success. As well as trying the standard Windows Wireless set-up, I have used the Atheros Client Utility (ACU) which confirms that the card and driver are installed and enabled, but the radio does not switch on, so no there is no association/connection with any wireless network!
Reinstalling the original AR5007 works without any problems. If anyone has experienced similar problems and/or can offer a solution, it would be greatly appreciated. Thanks

Thank you MasterG.
I followed the link you posted and you were correct in suggesting that a WLAN card pin assignment was an issue.
On older cards, (before Revision 1.2 of the PCI Express Mini Card Electromechanical Specification), *Pin 20* was +'reserved for future wireless disable signal (if needed)'+, so presumably on my Toshiba Satellite A200, disabling the old AR2007 card was handled by the system software and the Wireless ON/OFF switch.
On the newer adapter cards, Pin 20 is assigned to a *W_DISABLE#* signal which, when low, will disable the radio.
As suggested by other posts, masking Pin 20 on the AR5008 card has prevented the radio from being disabled, and the only small problem with this is the radio can no longer be switched off with the Wireless ON/OFF switch (or with Function+F8).
However, the wireless speed is now 144.4Mbps, enabling BT Infinity broadband download speeds in excess of 30Mbps.
Your assistance is very much appreciated.

Boot Camp Update 2.1+ Killed Broadcom 802.11n Usage

Ever since Apple released the 2.1 updates I had nothing but problems with my wi-fi broadcom 802.11n. As soon as the update is complete my wi-fi no longer sees networks. I solve the problem initially by doing a system restore to pre-update and then not installing the updates. Then I set a system restore point and attempted an update and when it was done not only was the wi-fi no longer working but my system restore point disappeared.
The modem is working because when I log into the Mac OS it works straightaway. When I go into Vista I can use ethernet to access the net but not wi-fi. I go into the connections area and the broadcom modem says disabled. I click 'enable' and then approve and it says 'enabling' and then disappears but still says disabled.
I then upgraded to boot camp 2.2 and the problem is still there. I checked the driver settings and they are: 4.170.25.12 driver version. I've rolled back to the Microsoft version and same result.
I've tried so many things but cannot figure out how to get the Broadcom wi-fi working again. Anyone have anything similar happen or any suggestions?

I solved this problem after 9 hours. The solution was alluded to in another post I found through google. When I uninstalled the drivers and then went to re-install I chose to select the drivers and then view available drivers. My system showed 3 drivers, 1 Microsoft and 2 Broadcom. I chose the certified Broadcom from 2007 and that one works.
Hope its helpful to others.

What may interfere with 802.11n?

Hello!
I've got a very strange problem with my MacBook.
I've just bought a new TC to replace my old 802.11g wireless access point.
Now, there is a very strange thing: 802.11n has a very good signal in all my house, except my room. In the corridor, the signal is excellent (100% or so), but when I walk 1 meter inside my room, the signal disappears almost completely (and it isn't possible to surf the Net).
What may cause this? It's very strange...
Also, my iPhone, which uses 802.11g, can connect in my room, and so was I able to do with my old router... So it seems only a problem of n-wireless...

and so? what shall I do?
I cannot disable n wirelessing so my MB always tries to connect using n...
then, in every other room it's working perfectly... for istance, at the moment I'm in the kitchen and I'm surfing wirelessly...

Can I force 802.11g instead of 802.11n?

A coffeehouse I frequent seems to have buggy 802.11n wifi -- I can't maintain a connection with my MacBook Pro, while my friend's iBook G4 has no problems with its 802.11g card.
So...
Is there a way to force my MBP to connect using G instead of N? This is a case where I can't reconfigure the router itself, so it's either force a G connection or frequent a different coffeehouse.

I bought Linksys wireless vs. paying for Apple's and they have a mode to select, e.g. lock out other protocols. You'd think Apple would too.
Here's a cheap and easy way as well - use a Linksys WRT54G router as a WAP set in G only. Connect it to your router with a cable and set it in a location ideally even closer to where you get the dropouts and it will act as a WAP vs. a router. Cheaper than actually buying Linksys' own WAP.
Simple to do - connect via ordinary cable to a port on the Linksys NOT the WAN port, set a static IP on it outside the range of the DHCP addresses assigned by your router and disable DHCP on the Linksys. It then becomes a WAP. Great way to extend networks and in your case to have a WAP forced to 802.11G. There is a setting for that - from B/G mixed to G only. $50 and a few minutes to set up. Yuo set up a separate SSID and password for WPA-2 and select it with your MBP.

Configure standalone 1250 AP to support 802.11n

Been searching this forum about 802.11n setup. So far, I learned (from this forum) that to support 802.11n, I must use WPA2/AES (or open auth), and I need to ensure WMM is enable.
Q-1. Besides the above two, are there any other requirement I need to address in my configuration?
Q-2. Do I have to enable both 2.4Mhz and 5Mhz radio for 802.11n performance?
Q-3. Is there WPA2/TKIP option? If so, would this option support 802.11n? Or, it has to be WPA2/AES?
Q-4. From the command line, how can I verify if I have WMM enable?
I have read the 1250 AP Configuration guide, but I don't see specific discussion/chapter about 802.11n. If there is any good reading I can do, please let me know.
Thanks.

I will try to answer your questions:)
Q-1. Besides the above two, are there any other requirement I need to address in my configuration?
You need to configure 40mhz channel width in the AP 802.11a radio
Q-2. Do I have to enable both 2.4Mhz and 5Mhz radio for 802.11n performance?
Only enable 'N' on the 5ghz side due to only having 3 non-overlapping channels on the 2.4ghz
Q-3. Is there WPA2/TKIP option? If so, would this option support 802.11n? Or, it has to be WPA2/AES?
AES is the supported encryption standard for 802.11N.... not TKIP. WPA2/AES or OPEN is your only option
Q-4. From the command line, how can I verify if I have WMM enable?
show wlan
Issue the config wlan wmm {disabled | allowed | required} wlan-id command in order to enable WMM mode

WRT330N and DELL 1505 Draft 802.11n WLAN Mini-Card Rev 2.0

Well it was time to upgrade the house with two new DELL Inspiron 530s.
Each with their own "DELL 1505 Draft 802.11n WLAN Mini-Card Rev 2.0"
Now the (problem) we are having is we are lucky to get 13.0 Mbps & that's if we stay online. Our World of Warcraft gets booted a lot. Which makes gaming hard when I purchased the WRT330N for gaming.
We have the latest drivers for the Wirelss adapters, Firmware is up to date.
Setup is as follows.
Wireless Setting:
Network: Wirelss-N Mixed
Wireless Name (SSID): My own thing there
Radio Band: Wide - 40 MHz channel
Wide Channel: 9
Standard Channel: 2.462 GHz - cH 11
SSID Broadcast: Disabled
Advanced Wireless Setting:
Trasmission Rate: Auto
CTS Protection Mode: Disabled
Beacon Period: 50
DTIM Interval: 3
Fragmentation Threshold: 2346
RTS Threshhold: 2347
Network Density: Low
Wireless Security: Disabled. We currently use Wireless MAC Address Filtering.
Any suggestions?

I am having the same issues. I have the same router but a different laptop. Mine is a Inspiron 1545 with an Intel 5100 AGN card. So the solution is to ditch the Linksys router and get a D-Link? what say you Linksys

Very slow 802.11n. 20" iMac, Vista, Broadcom, Belkin N1

I've been trying to get some drivers working with Windows Vista. I'll post the results I've been having and maybe someone can assist.
I have a 20" brand new iMac with Leopard running bootcamp windows vista ultimate. When I connect to a Belkin Pre-N wireless router I get 802.11g wireless speeds(expected) of about 36mb/s (it's a good distance away, 2 bars).
I have another wireless router Belkin N1 wireless and I get differing wireless speeds/connectivity depending on what drivers I use. I have 5 full bars and an "excellent" connection rating for it.
I understand that the specifications for 802.11n that both belkin and apple use are based on draft specifications and may not be compatible.
The drivers on the leopard disk are marked as 4.80.75.0. I can connect using those and use the internet. But at very, very slow speeds (27.0 mb/s Broadband tests show .5% of normal speeds for my provider, a wired connection will get 105.8% of normal speeds for my provider.)
I got some other drivers that were posted by other users at the following location
(http://www.versiontracker.com/php/dlpage.php?id=115683&db=win&pid=149836&kind=&l nk=ftp%3A%2F%2Fftp.support.acer-euro.com%2Fnotebook%2Ftravelmate_2480%2Fvista%2F Drivers%2F802.11b%2BgBroadcom+Wireless+Lan+Driver4.102.15.61.zip)
Those drivers are marked as 4.102.15.61. It will connect 1 out of 7 tries at 270mb/s but will disconnect after a few seconds.
There are some other drivers posted by another user at the following location:
http://discussions.apple.com/thread.jspa?threadID=1309942&tstart=0
These are marked as 4.150.31.0. Same issue as the ones on the leopard disk. I get connectivity, but at very slow speeds.
I believe I have the most up to date firmware for my router but will check that and post on the message board some results. Another option that I have is to completely disable the 802.11n protocol on the router and just use 802.11g.
Does anyone know any other drivers out there that I could try? I will post findings. Again this is only a problem while trying to connect to a Belkin N1 wireless router. I get much better speeds/connection using a Belkin Pre-N router.

I have a 24" Core 2 Duo iMac (2.4 GHz, 4 GB RAM) running Leopard and an Apple Airport Extreme base station, and am having the same problem with slow wireless speed under Vista Ultimate edition with Boot Camp. All Vista software updates as of March 11, 2008 have been applied.
I've reinstalled the driver from the Leopard disk (no effect) and updated the driver directly in Windows, using the one that Windows detects automatically (no effect). Under OS X, I get close to optimal bandwidth over the 802.11n connection to my cable modem. The Airport Extreme is set to use 5 GHz only and does not use the 802.11g-compatibility mode.
When I use a wired connection to my gigabit Ethernet switch, everything is fine.
Message was edited by: jeffkirk

Disable 802.11n in 10.5?

Similar Messages

Maybe you are looking for