Cisco Wireless :: 250 One AP's B/g/n Radio Is Not Active

Oct 1, 2012

I've recently installed a Cisco 2504 WLAN Controller with (5) AIR-LAP1042N-A-K9 Access Points.  Everything is working fine as far as the APs connecting to the controller, and clients being able to connect to the WiFi and get network access, etc.  The one problem I have is that one AP's b/g/n radio is not active.
If I go to the WLAN Controller management web page, and look at the Access Point Summary, it shows that I have five (5) 802.11 a/n radios active but only four (4) 802.11 b/g/n radios active.  I know which AP is affected and clients can indeed connect to that radio using wireless 'B' but not 'N'.I have only one WLAN configured on the 2504 (WLAN ID 1), and one AP group name (default-group) so there are no special groupings of APs.  I have been through every page of the Controller management page with a "fine tooth comb" and cannot find any place where I could accidentally be turning off the a/n radio for a single controller.

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Cisco Firewall :: ASA 5520s From Active / Standby To Active / Active

Jul 17, 2012

I have a pair of ASA 5520s operating in failover pair as active/standby, having two contexts on them. I am planning to share the load and make it active/active making first context active on the primary unit and second context active on the secondary unit. My question is if this will disrupt any connectivity thru these firewalls when I do "no failover" on the active/standby and assign the contexts to different failover groups and enable the failover back.

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Cisco Firewall :: ASA 5585X Active / Active Failover Group Inter Routing

Mar 20, 2012

I am looking at deploying a pair of 5585X's in an active/active multiple context state.  I am creating Mulitple contexts that need to be able to route to each other.  I was going to deploy a type of Gateway context that has a shared interface to all of the other contexts, instead of sharing interfaces directly between the contexts, i beleive this will work as basically i am just cascadng the contexts and sharing interfaces.
The main problem i have come across, is that if i deploy active/active across two appliances using 2 failover groups i can not see a way to route between them, for example. 
I have Context 1, Context 2 and Context GW A including the shared interfaces of Con1 and Con2  in failover group 1 on appliance A with the respective standbys on Appliance 2. I have Context 2, Context 4 and Context GW B including the shared interfaces of Con 3 and Con 4 in failover group 2 on appliance B with the respective standbys on Appliance 1.
I need to be able to route traffic between Context GW A and GW B so that the contexts can communicate in normal operation and in failover.  I do not beleive that I can share an interface between contexts in two separate failover groups and to be honest without adding a L3 device between the appliances i am not sure if this is possible.

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Cisco Firewall :: ASA 5510 Configuration Modifications In Active / Active Mode

Dec 17, 2012

I have two ASA 5510s running in Active/Active mode. I need to make config changes on them. How do I go about it? Do I power off the secondary ASA and make the config changes on the primary and then power on the secondary ASA ? Or this another way to do this?

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Cisco Firewall :: ASA5520 - Active / Active Failover In Multiple Security Contexts With Dual ISP?

Jun 1, 2011

I have an ASA5520 in location A with an ISP connection and a matching ASA5520 in location B with a separate ISP connection. We have fiber connecting the two locations and vlans passing back and forth so I will be able to configure the failover via a vlan as well as extend the ISP's to each location via vlans. The Active/Active configuration with the multiple security contexts does not seem to be an issue but how is a redundant ISP configured in this mode?We want to have context A using the ASA in location A with ISP1 as the primary and failing over to ISP 2 in locaiton B We also want to have context B using the ASA in location B with ISP 2 as the primary and failing over to ISP1 in location A Would route tracking provide the desired result? Is there a better option?

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Cisco Switching/Routing :: 6509 Series Switches Support VSS Active-Active Chassis

Feb 7, 2012

The 6509 Series Switches support the scenario VSS Active-Active Chassis, I would like to setup both switch's as one virtual switch but working at the same time, not with Active - Stand By Chassis.
My plans it to create PortChannel accross both Switches 6509 in order to have 2 links one connected to one slot/switch and the other connected to slot/switch in the second 6509 for servers redundancy.

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Cisco Switching/Routing :: ASR1000 - Dual ISP Active / Active Connection On Single Router

Jun 10, 2012

I am working on a network which has two ISP connections (Active/Active) terminating on router (ASR1000). From the LAN side (6500 switch) all the traffic need to be route on ISP1 but some of the specific subnets like need to be route on ISP2 connection.
I am planning to use PBR and NAT with route maps. any documents or refrences are provided.  
(access switches)---------(core switch)----------(routers)----------------(ISP1)

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Cisco WAN :: 4507 R - Active SUP Lost Connection And Standby Came Active

Apr 10, 2011

I faced one problem in our core switch 4507 R . Active sup lost connection and standby came active. We got lot of errors/alerts on console shown below. [Code] Also when I reloaded the switch with reload command only both sups got reloaded but I want to reload all the modules but reload command do not gives any options for that.

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Cisco Firewall :: 5520 - ASA Active / Active Failover And IPS Failure

Mar 30, 2011

I have 2 asa 5520 firewalls including and 1 AIP-SSM-10 module in each of them. the configuration is set using active/active failover and context mode.
Both of them run individualy the IPS module. The IPS is configured using inline mode and fail-open option. However when one of the module fails and the state is changing from up to init or anything else making the IPS to fail then failover is detected and ASA consider it as failover and bounce context to the other unit.
IPS soft is 6.0(4) and ASA soft is 8.0(3)
I have checked cisco doc and it is confusing to me. it says:  "The AIP-SSM does not participate in stateful failover if stateful failover is configured on the ASA failover pair." but it really does participate. Running is not really an option because of production network impact matter..

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Cisco VPN :: Active / Active ASA 5520 Remote VPN Access Limitations?

Sep 19, 2011

We have an Active/Active ASA 5520 setup, as i know in Active/Active setup there is no remote VPN access, So i could overcome this limitations?I have a solution but i dont know if it is ablecable or not? we have a spare ASA 5510, so i can use it behind Active/Active Firewalls and assign a public static NAT IP address to it and open all IPSEC and VPN ports and let the remote users to connect to it, is this ablecable setup or not?

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Cisco Firewall :: ASA5585-X Active / Active Failover Using Etherchannel?

Dec 27, 2011

its possible to set up active/active failover using etherchannel on 5585s? 

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Cisco Firewall :: How To Configure ASA5520 For Active / Active

Mar 17, 2013

How to Configure ASA5520 for Active/Active

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Cisco Application :: CSM Active / Active In 2 Redundant 6500s

May 7, 2007

our application team is mandating, that the solution we should come up with for SLB, should support Active/Active mode of SLB operation.
My question, is this mode of operation supported/accredited by Cisco, and what is the draw back from the traditional active/standby.

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Cisco Wireless :: LAP1131 B/g Radio Not Seen In WLC?

Apr 19, 2013

The network consists of 133 RAPs/MAPs/1131 APs and all joined the WLC.  When I check the 802.11 a/n radio tab, I see only 129 APs and the 802.11 b/g/n tab I see 133 APs.  I found out that 4 LAP1131 is not showing in the 802.11 a/n tab.  I tried resetting the AP thru the WLC and still the don't see it in the 802.11 a/n tab. 

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Cisco Wireless :: AIR-LAP1131AG-C-K9 Radio 802.11b Could Not Be Enabled?

Feb 15, 2012

I've a 2106 WLC and the software is upgrade to There are 3 APs with external power adapter work normally on it. Here is the problem: There is another AP with external power adapter has join the the WLC successfully. But it can not enable the radio 802.11b. Following is the error message on CLI
(Cisco Controller) config>802.11b enable AP001d.a1ef.b5f4 Cisco AP has not enough in-line power to enable radio

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Cisco Wireless :: 1140 - How To Disable Radio On AP

Nov 20, 2012

how to disable radio on the AP 1140 from NCS script .

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Cisco Wireless :: Air-AP1141N - Radio 5Ghz Not Available

May 9, 2013

I've just bought an access point AP1141N for my small business but unfortunately there is only Radio 0- 2.4G  available through web interface. It is working fine but I would like to have access to radio 1 (5Ghz)  as well.

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Cisco Wireless :: How Radio Works On 7921

Feb 20, 2012

 We have two different entities we support and both are set up as autonomouse wireless groups.  The SSID is the same though so they can use their 7921's between floors and buildings.  The problem we have had is that the phones on the first floor were getting the IP's of the organization on the second floor.  When you view the AP's on the phone the ap directly next to it on the first floor (the one its suppose to talk to) is listed first, The strange thing is that shows it is connected to the right AP (the first floor one). The AP on the second floor is also listed but its about third down.  After the phone sits it will actually change IP's but not all of them.  Their were a few phones that took about a half a day to get the correct IP. 
My question is how do these phones grab their ip's?  I know how DHCP works but I am needing to know specifically how the radio works on the 7921's.  What is the boot up process? It appears that it must cycle through each channel starting with the highest and loop through a process in descending order: compare ssid's and then authenticate if possible.  I am assuming it is seeing the second floor first because initially they all get the second floor ip.  The second floor is on channel 60 and the one it should connect to is on channel 36 (We are using 802.11a).  That's how I came up with my descending channel theory.

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Disabled Wireless Radio On Westell

Feb 16, 2013

I have a westell DSL modem/router supplied by Frontier. It connects only to the telephone line and via cat5 to my main router, a cisco EA6500. Everything seems to be working fine, I just would like to understand a few things.I disabled wireless radio on the westell, enabled it on the cisco, so I have just one WIFI network active.I know I am not supposed to have two DHCP servers active, but I did not know how else to be sure the CISCO would get a good address, so I left DHCP active on the WESTELL, and also enabled it on the CISCO to provide service for the rest of the net.The WESTELL admin interface is at, and assigns addresses in this range.According to the WESTELL, the CISCO is at, which I assume was assigned by DHCP.The CISCO has an admin interface at, and assigns addresses in this range to all the other devices on my net.As I say, everything works.I can access both router admin pages with a browser on my main 10.144.224 network, and can ping both.But I don't understand why it works.What rules allow me to talk to the WESTELL admin page from the CISCO private network, but do NOT propagate the DHCP access which is at the exact same IP address.

It is great that it works. But should I really have disabled DHCP on the WESTELL and assigned a static address to the CISCO? Or is this situation actually provided for in the rules, not just a lucky accident that it works?Why does the scanner say that the CISCO DHCP is "Unknown" rather than Authorized or Unauthorized? Is there something I can or should do to get it to be "Authorized"? I can ping, but not the (times out), and yet when I ping a non-existent I get "Reply from Destination host unreachable".

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Turn On Wireless Radio On IBM T41p?

Mar 17, 2011

I can't find out how to turn on my wireless radio on IBM T41p. The Fn+F5 does nothing. I do not have internet because of this.

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Cisco Wireless :: 2504 / AP Radio Restart And AP Unregister From WLC?

Apr 6, 2013

Im using WLC 2504 with vertion 7.4  and 2600 LAP's the access points are working fine when its isolated from the live network, but once its in the live network the AP radios resetting (APs won't reboot) and unregistering from the WLC in random intervals, 
WLC error log is as follow,
---------------Show msglog---------------
 Message Log Severity Level ...................... ERROR
 *emWeb: Apr 05 14:57:02.966: #APF-0-SITE_OVERRIDE_CONFIG_RESET: apf_site_override.c:400 Resetting site override config.
 *Dot1x_NW_MsgTask_6: Apr 05 14:50:14.444: #DOT1X-3-INVALID_REPLAY_CTR: 1x_eapkey.c:360 Invalid replay counter from client 20:10:7a:1a:60:9e - got 00 00 00 00 00 00 00 00, expected 00 00 00 00 00 00 00 02


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Cisco Wireless :: LAP 1522 / All Radio Interfaces Disabled

Sep 26, 2012

I connected AP 1522 to AC power source and this is the message that i received on the console port.
%CDP_PD-2-POWER_LOW: All radios disabled - AC_ADAPTOR  (0000.0000.0000)
Why this message apear ?This is not sufficient power to bring up radio interfaces?

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Cisco Wireless :: 3500 How Many 5.8 GHz Antennas To Pick For Each Radio

Dec 3, 2012

I am building a BOM for a customer and I need to present cheaper options than 3500 or 3600 APs. I thought of these two models but I don't know what models of antennas to pick.1602 is a 3X3 MIMO with 3 antenna connectors. How many 2.4 GHz and how many 5.8 GHz antennas should I pick for each radio?2602 is a 3X4 MIMO with 4 antenna connectors. In this case I suppose there are 2 connectors per radio.

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Cisco Wireless :: 1262 AP / 2504 WLC - Only One Radio Appears?

Aug 12, 2012

We have 6 1262 APs and a 2504 WLC.  5 of the 1262 appear correctly with 2 radios.  One of them shows 1 radio.  See screen shots below showing model numbers and interfaces on the AP with one radio available (All other 1262s show 2 radios as normal).  Tried resetting the AP to factory default, but same result.  Do I have a defective AP?

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Cisco Wireless :: Turn On Radio On 1522E AP With 2504 WLC?

Oct 17, 2012

I have a 2504 WLC with two 1522 AP's one is Root the other Mesh the 802.11b/g/n/     Admin Status says Up but the Operational Status says down. How can I turn this on? When I change the Admin status to enable I get a "Error in  Enabling Admin Status" 

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Cisco Wireless :: 1410 Shows Radio Disabled And Down?

Jul 6, 2005

When I view web page of 1410 radio is show ethernet enabled and up but radio as disabled and down. I have tried to enable but to no avail. Is this a sign my radio has gone bad?

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Cisco Wireless :: LWAPP 1242 Radio 0 Shows Down

Jan 14, 2012

I have cisco LWAPP 1242 AP already joined controller but 802.11b/g shows down on the radio 0 interface. I tried to enable it but it comes with an error" Error in enabling admin status". I have resetted the AP to factory default settings and even replaced with NEW AP.

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Cisco Wireless :: Radio Supported For 1200 Series?

May 15, 2012

I am running the upgrade tool on Aironet AP1230B-A-K9. I can't join the controller by using the upgrade tool. the error is "AP does not have Supported Radio". What radio is the upgrade tool or controller look for on Aironet 1200 series? This AP is running 802.11b. However, I have several APs which the same model is running on the same one controller.  The controller is model 4402.

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Cisco Wireless :: AIR-LAP1141N-E-K9 Radio Interface Reset

Sep 2, 2012

I am facing a problem with my access point AIR-LAP1141N-E-K9, which was converted from LWAPP to autonomous, radio Interface Dot11Radio0 is going to reset down state very frequently.AP is connected to WS-C3560G-24PS (POE) switch. [code]

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Cisco Wireless :: Radio Resets When Enabling New SSID 7.3.1

Feb 24, 2013

Running vwlc 7.3.101 and encountered a smaller issue.When you enable / disable a SSID, all AP's reset their radio interfaces... causing everyone to drop their connection.

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Cisco Wireless :: 1131AG And Radio Reset Code 46?

Apr 24, 2012

I have a problem with one of our 1131AG AP,  B/G radio go down:
show controller dot11Radio 0:
Last radio reset code: 46
Radio resets - total:2946 retries:0 failed:0
Reset Stats: Start Cnt: 2742, Recovery: Cnt 33, Last Ret: 20, Fails: 0, Recvry Status: Stalled NO, In Prog NO
Code/Count: 37/00025 46/02851 51/00005 54/00030
Code/Count: 62/00001 67/00001 71/00033
Although I was not able to find any information about this reset code in Cisco documents. What is the reset code 46?What can i do?

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Cisco Wireless :: WLC 7.4 Dual-Band Radio Section

Apr 9, 2013

Not sure if it's new in WLC 7.4 code, but I now see "Dual-band radio" section everywhere in addition to "802.11a/n" and "802.11b/g/n". My dual band APs (for example 2600's) show up under both 802.11a/n and 802.11b/g/n as in the past. So what is this new category "dual-band radio" for then?

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Cisco :: 1140 - Radio Type Of Wireless Client B / G Or N

Nov 28, 2011

We are using the CISCO-DOT11-ASSOCIATION-MIB in a Cisco Air AP 1140 device with release 12/4(21a)JA1 to find out the radio type of wireless client (B/G or N).  The clients in question are of type Wireless N and  Wireless B/G.  We are querying cDot11ClientDevType and cDot11ClientRadioType but the relation between the returned values and client/radio type is not clear:

2 devices returned: cDot11ClientDevType = 102 ==> pc4500Client(102) - client with a 4500 radio and ClientRadioType=2==> ccxClient(2) - CCX- compatible radio1 device returned: cDot11ClientDevType = 1==> unknown (1) – unknown and ClientRadioType= 1==> unknown(1) 

Questions: On a Cisco Air AP 1140 device

What OID needs to be polled to find if the client's radio type?What value is returned by this OID  if the radio type is B/G?What value is returned by this OID  if the radio type is N? 

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