Need to admin disable 802.11a radio from a few light weight access points

Hi team,
I need help to admin disable the 802.11a radio interface from a few lightweight APs. The operational status of these radio interfaces is down, so I am getting the following error when I try to disable them from the wireless LAN controller.
(Cisco Controller) config>802.11a disable wds2.hyd.shaw.net
This slot is not operational because Regulatory Domain Check has failed! Unable to disable the Cisco AP.
Could you please let me know how I can administratively disable the 802.11a radios on these APs? Please let me know if you need more details here.
Regards,
Swati

The two previous posts are correct: the regulatory domain is probably not allowing radio a to be enabled.
To be sure about this you can go to GUI of the wireless LAN controller > Wireless > Country. Here your country (or region) should be selected. Then depending on the access points that you have they may or may not join or turn on the radio. Per example if you have an access point from Europe (like AIR-AP1131AG-E-K9) then you will have a conflict if only the “America” regulatory domain (-A) is selected.
Here is a link with a list of products and their regulatory domain that might help:
http://tools.cisco.com/squish/648C8
What you can do here is to simply allow the regulatory domain that the access point needs and you should not have any problems.
IMPORTANT NOTE: If you change the regulatory domain and use an access point that transmit at certain channels and frequencies that are not allowed (illegal) in your country (region) you may have legal implications.
I hope this information helps you with your concern.

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*Apr 4 12:24:05.013: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to r
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*Apr 4 12:24:17.811: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, chan
ged state to upInternal error: command failed                                                             <<<< Internal error: command failed ??????
                                                                                                                               <<<<don't know the meaning of this message
*Apr 4 12:27:22.206: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
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*Apr 4 12:27:22.233: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:22.233: dot11_mgmt: bad cookie returned from driver for mac 003a.9         <<<<<003a.928.dad0 is radio 1 / non root bridge of remote AP
928.dad0(expected 0x00000000, got 0x010ADAB0) - force driver to delete client             <<<<<don't know the meaning of this message
*Apr 4 12:27:22.235: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
eset
*Apr 4 12:27:22.262: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:23.513: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to up
*Apr 4 12:27:26.993: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
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*Apr 4 12:27:28.465: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
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*Apr 4 12:27:28.467: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
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*Apr 4 12:27:31.673: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:27:32.687: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:28:46.178: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Sending station has left the BSS
*Apr 4 12:28:46.179: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:28:46.181: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:28:47.196: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:29:15.132: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
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*Apr 4 12:29:32.442: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
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*Apr 4 12:29:32.442: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Previous authentication no longer valid
*Apr 4 12:29:32.443: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:29:32.444: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:31:10.285: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: Rcvd response from 003a.9928.2660 channel 6 2560
*Apr 4 12:31:18.286: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: AssociatingInternal error: command failed
*Apr 4 12:31:27.021: dot11_mgmt: bad cookie returned from driver for mac 003a.9
928.2660(expected 0x00000000, got 0x010ADAB0) - force driver to delete client
*Apr 4 12:31:29.107: %DOT11-4-UPLINK_ESTABLISHED: Interface Dot11Radio0, Associ
ated To AP T9_SML_LT2_AP2 003a.9928.2660 [None]
*Apr 4 12:31:29.108: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Apr 4 12:31:30.108: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
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Thanks dmantill for reminding me to revisit the antenna and related stuff.
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speed basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
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station-role non-root
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concatenation
beacon period 20
infrastructure-client
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version 12.4
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service timestamps log datetime msec
service password-encryption
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aaa group server tacacs+ tac_admin
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aaa session-id common
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clock timezone MST -7
clock save interval 24
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dot11 ssid LabTest
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dot11 network-map
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interface Dot11Radio0
no ip address
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speed basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
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station-role non-root bridge
rts threshold 4000
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concatenation
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Thanks Cathy
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.0.100.0
RTOS Version..................................... 8.0.100.0
Bootloader Version............................... 8.0.100.0
Emergency Image Version.......................... 8.0.100.0
Build Type....................................... DATA + WPS
System Name...................................... wlc01
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1631
IP Address....................................... 172.20.0.102
IPv6 Address..................................... ::
System Up Time................................... 3 days 1 hrs 57 mins 9 secs
System Timezone Location......................... (GMT+10:00) Sydney, Melbourne, Canberra
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180
Configured Country............................... AU - Australia
--More-- or (q)uit
State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 2
Number of Active Clients......................... 1
Burned-in MAC Address............................ 00:0C:29:ED:49:8A
Maximum number of APs supported.................. 200
System Nas-Id.................................... Cisco_ed:49:8a
TestAP#show ver
Cisco IOS Software, C1040 Software (C1140-K9W8-M), Version 15.3(3)JA, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 15-Aug-14 13:14 by prod_rel_team
ROM: Bootstrap program is C1040 boot loader
BOOTLDR: C1040 Boot Loader (C1140-BOOT-M) Version 12.4(23c)JA6, RELEASE SOFTWARE (fc1)
TestAP uptime is 40 minutes
System returned to ROM by power-on
System image file is "flash:/c1140-k9w8-mx.153-3.JA/c1140-k9w8-xx.153-3.JA"
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cisco AIR-LAP1042N-A-K9 (PowerPC405ex) processor (revision A0) with 98294K/32768K bytes of memory.
Processor board ID FGL1707S3P4
PowerPC405ex CPU at 333Mhz, revision number 0x147E
Last reset from power-on
LWAPP image version 8.0.100.0
1 Gigabit Ethernet interface
2 802.11 Radios
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:06:F6:3B:A9:F7
Part Number                          : 73-14034-06
PCA Assembly Number                  : 800-34273-07
PCA Revision Number                  : A0
PCB Serial Number                    : FOC17015X6X
Top Assembly Part Number             : 800-34285-05
Top Assembly Serial Number           : FGL1707S3P4
Top Revision Number                  : A0
Product/Model Number                 : AIR-AP1042N-A-K9

Configured Country............................... AU - Australia
WLC is configured for Australia (-N for AP1042).
Product/Model Number : AIR-AP1042N-A-K9
AP Regulatory Domain is for USA (-A).
This is the reason why your AP's 802.11a radio is permanently disabled. Unfortunately, the Wireless LAN Compliance Status (06 October 2014) doesn't list old-model APs. And this doesn't help anyone.
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Hi,
Happy new year to you too.
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Cisco Aironet 1140 Series Access Point
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P70ca.9bd5.77c6#
AP70ca.9bd5.77c6#
AP70ca.9bd5.77c6#
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version 6.0
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version 6.0
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on WLC USSTLController01
version 6.0
.182.0
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AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>
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3750X-48P (e05f.b907.9a20)
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>en
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AP70ca.9bd5.77c6#
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AP70ca.9bd5.77c6#
AP70ca.9bd5.77c6#
AP70ca.9bd5.77c6#
P70ca.9bd5.77c6>
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3750X-48P (e05f.b907.9a20)
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>
AP70ca.9bd5.77c6>en
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AP70ca.9bd5.77c6#
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To enable the radio interfaces, follow these instructions:
Step 1 Use your web-browser to access your access point.
Step 2 When the Summary Status page displays, click Network Interfaces > Radio0-802.11B or Radio0-802.11G and the radio status page displays.
Step 3 Click Settings and the radio settings page displays
Step 4 Click Enable in the Enable Radio field.
Step 5 Click Apply.
Here is a link to the actual document:
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_installation_guide_chapter09186a00804d2b73.html
Hope this helps!
Rob
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No of client supported per radio on Cisco Access Points?

Hi Experts,
Is their any documentation that lists out the number of clients that can be handled efficiently per radio against a particular model of access points?
The question might appear quite ambiguos considering the fact that the wireless communication works on the principal of air time and shared medium. However still curious to know if latest model of access points make the enhancement any better.
Learnt quite some time back that 1262 WAP supports 15 clients per radio while 3700 would easily do with over 128 client per radio. Not sure on what basis we distinguish this?
Appreciate if someone could share their knowledge on same. Would be grateful if we a pointer to any doc is shown as well giving the comparision.
Thanks and Regards,
Adnan

Hello Scott,
Glad to see your response.
Does this rule of thumb(of 25 APs per radio) applies to all the access points models?
Little confused from document( http://www.cisco.com/c/en/us/products/wireless/buyers-guide.html#~indoor ) which lists different client count values against different models. Suppose we are having 600 series of WAP, the doc says it has client count value of 15. So I made my own conclusion that only 15 clients active association is possible at any given instant in time and if the 16th client tries association, it will fail and would be able to succeed only when the already associated client count goes a little under 15.
Can you please throw some light on the document claims?
Thanks,
Muhammed Adnan

Need to admin disable 802.11a radio from a few light weight access points

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