Extreme AP doesn't show in 802.11B/G mode

I'm using a macbook pro 2.0ghz, and just bought an 802.11n Airport Extreme.
I have nothing new in software update control panel. I'm running 5.2.1 Airport Utility,
My airport extreme has the green light, and via the ethernet port I can connect to the web.
When I set it to 802.11N, I can see/connect to it wirelessly and get to the web.
When I set it to 802.11B, I can't see the AP, or connect to it via manual join. But I can still connect over ethernet of course.
None of my other laptops/iphone can't see it in 802.11B mode either. I do NOT have closed network enabled, it should be broadcasting for the world.
So what gives? My airport 802.11B base station worked great (I unplugged it during this). But my 802.11N Extreme doesn't seem to work as 802.11B/G, even though it's a selectable option.
Anyone else seeing this?

Although it should change automatically when you change to 802.11b/g, verify that the radio mode is switching to 2.4 GHz.

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Setting 802.11b Only mode for WAIR-AP1252AG-A-K9

I am using Cisco AP " WAIR-AP1252AG-A-K9".
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You are using the wrong model of WAP then. For Indian Regulatory Domain, you need "-N". The WAP you have is "-A".
1. If you want 802.11b ONLY then you CANNOT enable 802.11 b and n. 802.11n requires you to use 802.11a radio and bonded. It doesn't make any practical sense to have 802.11b and you want to run 802.11n because 802.11b only has three channels.
2. If you want 802.11b ONLY, then you only allow the data rates for 802.11b, and they are: 1-, 2-, 5.5-, and 11 Mbps.
Read this document: Capacity Coverage & Deployment Considerations for IEEE 802.11g and look at Table 4. This will guide you which are the data rates for 802.11b and 802.11g.

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Question on the command "show ap auto-rf 802.11b <ap_name>". What is the period of time that is measured for:
    Channel Utilization.......................... 64 %
I am seeing high channel util. on certain AP's, but standing directly below the AP w/ spectrum analyzer, I see much lower util.%:
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complete output of the command:
(WiSM-slot8-1) >show ap auto-rf 802.11b ap-bhs-400-2
Number Of Slots.................................. 2
AP Name.......................................... ap-bhs-400-2
MAC Address...................................... 50:57:a8:d6:7d:6d
Slot ID........................................ 0
Radio Type..................................... RADIO_TYPE_80211b/g
Sub-band Type.................................. All
Noise Information
    Noise Profile................................ PASSED
    Channel 1.................................... -88 dBm
    Channel 2.................................... -89 dBm
    Channel 3.................................... -91 dBm
    Channel 4.................................... -94 dBm
    Channel 5.................................... -93 dBm
    Channel 6.................................... -93 dBm
    Channel 7.................................... -90 dBm
    Channel 8.................................... -87 dBm
    Channel 9.................................... -94 dBm
    Channel 10................................... -92 dBm
    Channel 11................................... -92 dBm
Interference Information
    Interference Profile......................... PASSED
    Channel 1.................................... -128 dBm @ 0 % busy
    Channel 2.................................... -128 dBm @ 0 % busy
    Channel 3.................................... -128 dBm @ 0 % busy
    Channel 4.................................... -128 dBm @ 0 % busy
    Channel 5.................................... -128 dBm @ 0 % busy
    Channel 6.................................... -128 dBm @ 0 % busy
    Channel 7.................................... -128 dBm @ 0 % busy
    Channel 8.................................... -128 dBm @ 0 % busy
    Channel 9.................................... -128 dBm @ 0 % busy
    Channel 10................................... -128 dBm @ 0 % busy
    Channel 11................................... -128 dBm @ 0 % busy
Load Information
    Load Profile................................. PASSED
    Receive Utilization.......................... 0 %
    Transmit Utilization......................... 1 %
    Channel Utilization.......................... 65 %
    Attached Clients............................. 0 clients
Coverage Information
    Coverage Profile............................. PASSED
    Failed Clients............................... 0 clients
Client Signal Strengths
    RSSI -100 dbm................................ 0 clients
    RSSI -92 dbm................................ 0 clients
    RSSI -84 dbm................................ 0 clients
    RSSI -76 dbm................................ 0 clients
    RSSI -68 dbm................................ 0 clients
    RSSI -60 dbm................................ 0 clients
    RSSI -52 dbm................................ 0 clients
Client Signal To Noise Ratios
    SNR    0 dB.................................. 0 clients
    SNR    5 dB.................................. 0 clients
    SNR   10 dB.................................. 0 clients
    SNR   15 dB.................................. 0 clients
    SNR   20 dB.................................. 0 clients
    SNR   25 dB.................................. 0 clients
    SNR   30 dB.................................. 0 clients
    SNR   35 dB.................................. 0 clients
    SNR   40 dB.................................. 0 clients
    SNR   45 dB.................................. 0 clients
Nearby APs
    AP 00:0f:90:5e:2a:d0 slot 0.................. -73 dBm on 11 (10.252.1.2)
    AP 00:13:5f:56:e0:90 slot 0.................. -88 dBm on 11 (10.252.1.4)
    AP 00:13:5f:57:00:70 slot 0.................. -79 dBm on   1 (10.252.1.4)
    AP 00:16:9c:91:64:e0 slot 0.................. -43 dBm on 11 (10.252.1.2)
    AP 00:17:0f:db:2e:70 slot 0.................. -87 dBm on   1 (10.252.1.2)
    AP 00:17:df:35:43:90 slot 0.................. -90 dBm on   1 (10.252.1.10)
    AP 00:21:d8:d5:a2:40 slot 0.................. -91 dBm on   1 (10.252.1.12)
    AP 00:21:d8:d5:a8:90 slot 0.................. -91 dBm on   1 (10.252.1.12)
    AP 00:21:d8:d5:a8:c0 slot 0.................. -91 dBm on 11 (10.252.1.12)
    AP 00:21:d8:d5:ac:80 slot 0.................. -92 dBm on   1 (10.252.1.12)
    AP a4:56:30:5d:b0:a0 slot 0.................. -89 dBm on 11 (10.252.1.12)
    AP b4:e9:b0:b3:c8:70 slot 0.................. -91 dBm on 11 (10.252.1.18)
Radar Information
Channel Assignment Information
    Current Channel Average Energy............... -76 dBm
    Previous Channel Average Energy.............. -57 dBm
    Channel Change Count......................... 3
    Last Channel Change Time..................... Wed Jul 17 22:27:37 2013
    Recommended Best Channel..................... 1
RF Parameter Recommendations
    Power Level.................................. 1
    RTS/CTS Threshold............................ 2347
    Fragmentation Threshold...................... 2346
    Antenna Pattern.............................. 0
Persistent Interference Devices
Class Type                 Channel DC (%%) RSSI (dBm) Last Update Time
All third party trademarks are the property of their respective owners.
These are lined down a hallway (about 50' from ea. other). Looks to me like they are set for too high Tx and crowding chan. 1. I'll figure out the reason for that.
show advanced 802.11b txpower:
ap-bhs-400-1                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-2                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-3                     *11        *1/8 (23 dBm) [23/20/17/14/11/8/5/2]
ap-bhs-400-4                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-400-5                     *11        *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]
ap-bhs-400-6                     *1         *1/7 (22 dBm) [22/19/16/13/10/7/4/4]
ap-bhs-451-1                     *6         *7/8 ( 5 dBm) [23/20/17/14/11/8/5/2]

Cool thx. Guessing "Load Interval". Looks like 60 seconds is the answer. Including output here for others...
show advanced 802.11b monitor
Default 802.11b AP monitoring
802.11b Monitor Mode........................... enable
802.11b Monitor Channels....................... Country channels
802.11b RRM Neighbor Discovery Type............ Transparent
802.11b AP Coverage Interval................... 180 seconds
802.11b AP Load Interval....................... 60 seconds
802.11b AP Noise Interval...................... 180 seconds
802.11b AP Signal Strength Interval............ 60 seconds
802.11b AP Neighbor Report Interval............ 180 seconds
802.11b AP Interference Report Interval........ 120 seconds

Verizon/Actiontec forces people to use 802.11b on GT704WGB modems

Verizon recently sent me an Actiontec GT704WGB as a replacement for my GT704WG. When I tried to turn off the mixed mode wireless support (802.11b and 802.11g), the modem wouldn't show "802.11g only" on the status screen.
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voyager62 wrote:
Even then I'd lose the ability to manage the Actiontec wirelessly.
Really? I would not be so sure of that, if I were you.
I know that you do not have a Linksys, but as an example I point to:
http://www.dslreports.com/faq/7267
* Especailly the recommended method that they talk about.
voyager62 wrote:
The best solution is to simply fix the firmware so that 802.11b can be turned off properly.
Yes, I guess that would be nice.
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.

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I had 2 controller WISM in my 6509E chassis
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Error for wireless request "Set modulation" (8B2F):
SET failed on device wlan0 ; Operation not supported.
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NU-Mac boy, Welcome to the discussion area!
The 802.11b base station is not an AirPort Extreme base station (AEBS). The 802.11b base stations were the graphite AirPort base station (ABS) and dual-Ethernet (aka 'snow') ABS.
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How can I use the Time Capsule in only 802.11b/g?

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Message was edited by: Karl R.

Duane wrote:
Then the Time Capsule's 5 GHz network should not interfere with the phone since it operates a long way from the phone's frequency.
Not necessarily. In the US 802.11n channels appear to go up to at least 5.805 GHz, if I interpret this chart
http://www.networkdictionary.com/Wireless/Wi-Fi-Wireless-LAN-Frequency.php
correctly.
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EliasMarsh, Welcome to the discussion area!
I suggest that you visit the "AirPort Extreme (802.11n)" discussion area since that is the ONLY AirPort Extreme base station (AEBS) with the ability to use USB hard drives and there are many discussions about this topic already in that discussion area.
This discussion area is for the older round 802.11b/g AEBS which do NOT support USB hard drives.

Time Capsule (SIM) expand network with 802.11b/g Airport Extreme

Hi, I try to expand a Airport-Network which is set up with a Time Capsule (SIM (latest model). I like to use an Airport-Extreme-Basestation to expand the network. The two devices will be connected wireless. In the helpfile there is a explantation how to do this with 802.11n-devices but when it comes to the 802.11b/g-devices it just says I should have a look on the apple support-pages. I do not find anything there.
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What to do?
Message was edited by: Kadege

Kadege wrote:
Ok Jolly, thank you, but I started this thread to get in contact to somebody who knows the solution, i.e. has done this before.
Jolly Giant wrote:
try automatic
Of course I've already tried this and the other automatics, but it did not work. That is the reason I am asking for help. So I guess I need special settings.
NOT good !
No protection is not good, ok. But I want it to set up and running and after this I can switch on protection to eleminate some mistake-reasons.
WDS-Mode: "remote WDS-Basestation"
when the UFO joins the TC's network this will no longer apply
But this menu exists and the UFO does not join the network, so I have to select any of this settings!
try these steps provided by Tesserax:
Setting Up Time Capsule as a Second Wireless Router
802.11g AirPort Extreme Base Station -> 802.11n Time Capsule
With "mixed" AirPorts, you will need to configure both routers into a Wireless Distribution System (WDS). Your neighbor's AirPort Extreme Base Station (AEBS) will be the main and your Time Capsule (TC) will be the remote base station in this WDS.
To simplify setup, you should connect your TC directly to the AirPort's LAN port by Ethernet. Once the WDS is configured, you can disconnect the TC and place it at the desired location.
The following are the basic configuration steps to create a WDS:
(Note: To facilitate the WDS set up, jot down the AirPort IDs (MAC addresses) for each of the base stations to be used in the WDS. The AirPort ID and is printed on the label on the bottom/side of the base station.)
Main Base Station Setup - AEBS
o Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as the main base station.
o Open AirPort Utility (located in the Utilities folder in the Applications folder on a Macintosh computer, or in Start > All Programs > AirPort on a computer using Windows).
o Select the main base station, and choose Manual Setup from the Base
Station menu, or double-click the base station to open the configuration in a separate window.
o Enter the base station password if necessary. If the base station is using the
default password of public, you will not be prompted for a password.
o Click Wireless in the toolbar, and then choose “Participate in a WDS network” from the Wireless Mode pop-up menu.
o Click WDS and then choose “WDS main” from the WDS Mode pop-up menu.
o Select the “Allow wireless clients” checkbox if you want client computer to connect to this base station.
o Click the Add "+" button and enter the AirPort ID of the base station you want to connect to this base station.
o Click Update to send the new settings to the base stations in the WDS.
Remote Base Station Setup - TC
o Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as a remote base station.
o Open AirPort Utility (in the Utilities folder in the Applications folder on a Macintosh computer, or in Start > All Programs > AirPort on a computer using Windows).
o Select the remote base station, and choose Manual Setup from the Base Station menu.
o Enter the base station password, if necessary. If the base station is using the default password of public, you will not be prompted for a password.
o Enter the same network password as the main base station, if necessary.
o Click AirPort in the toolbar and click Wireless. Choose “Participate in a WDS network” from the Wireless Mode pop-up menu, and choose the same channel as the main base station from the Channel pop-up menu.
o Click WDS and choose “WDS remote” from the pop-up menu.
o Enter the AirPort ID of the main base station in the WDS Main field.
o Click Update to transfer the settings to the base station.
(ref: Pages 42-46 of "Designing AirPort Networks.)
802.11n AirPort Extreme Base Station -> 802.11n Time Capsule
o Open AirPort Utility and select the base station that will connect to the Internet.
o Choose Manual Setup from the Base Station menu, or double-click the base station to open the configuration in a separate window. Enter the base station password if necessary.
o Click AirPort in the toolbar, and then click Wireless.
o Choose “Create a wireless network” from the Wireless Mode pop-up menu, and then select the “Allow this network to be extended” checkbox.
o Next, select the base station that will extend this network, and choose Manual Setup from the Base Station menu, or double-click the base station to open its configuration in a separate window. Enter the base station password if necessary.
o Choose “Extend a wireless network” from the Wireless Mode pop-up menu, and then choose the network you want to extend from the Network Name pop-up menu.
o Enter the base station network and base station password is necessary.
o Click Update to update the base station with new network settings.
does this fix it for you ?
edited by the Jolly Green Giant (where Green stands for environmentally friendly)

I'm trying to set up time machine to back up on an external HD connected t my airport extreme, but the disk doesn't show as an option in the time machine selecting a disk, any suggestion anyone? My mac "sees" the airport extreme ??

I'm trying to set up time machine to back up on an external HD connected t my airport extreme, but the disk doesn't show as an option in the time machine selecting a disk, any suggestion anyone? My mac "sees" the airport extreme ??

The first important thing to consider here is that Apple does not support Time Machine backups to a drive at the USB port on the AirPort Extreme, so that may likely have something to do with your difficulties.
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Airport express 802.11b doesn't connect to Linksys E3000

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Extreme AP doesn't show in 802.11B/G mode

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