Cisco Wireless :: CT2504 / Bad LWAP Versus Good Standalone AP Coverage?
Jun 13, 2012
We have just installed our first CT2504.After install I have found a dramatic drop in signal strength compared to the wireless survey result obtained.All of our site surveys include real world testing using an AP, in this case a AP1041N.In doubt I retested a section using an AP1041N in the same location as one of the recently deployed LAP1041N.
In the same location a LAP1041N has between -10 and -20dbi difference in SNR compared to the test AP1041N.For example locations that tested with -60dbi using an AP1041N have little to no coverage using the LAP1041N installed.This applies irrespective of the WLC automatic control over Tx power or manually setting the LAP TX to the highest level.
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Jul 12, 2012
Is Aironet 1260 good for indoor LWAP or CAPWAP environment? Do we need external antenna for the Aironet 1260 access point when using it indoor?
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Jun 13, 2012
I have a number of existing 1140G Access points.I now need to purchase a couple of new AP's to expand coverage and it makes sense to go with the latest N standard ones.Currently I only have standalone models and at the moment I don't have the budget to purchase a management box to allow me to get centrally managed models.
If I purchase 1140N standalone AP's now, can I convert the to centrally managed ones later? If yes, Any disadvantage in doing this?
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Mar 19, 2013
I have a few 1142N Aironets with internal antennas in place, and I am not thrilled by its coverage. I want to extend my wireless network because of a new building which led me to the following question;Is there is any difference in wireless coverage when using external dipole antenna’s (the small ones, for example the AIR-ANT2524 for a new 2600 Aironet) versus the internal (dipole) antenna’s. I am aware you have more options when using external antenna’s, such as omni, directional, outdoor etc.
For an indoor office or warehouse deployment, where temperature is not a concern, why would I buy for example the 2600E with 4 dipole antenna’s over the 2600i?I have read most Aironet datasheets and their antenna options, but can’t find a word about the advantages of external dipole antennas. I would expect external antennas would give better coverage.. is this true?
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Apr 5, 2010
I setup a WRT120N router in my home. I am having a issue getting good coverage over my single floor ranch style home. Would changing the Standard Channel (currently set 6) make a difference?
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Jun 5, 2013
I have wlc AIR-CT2504-K9. After save config and power down, wlc cannot start. In console I see:
WLCNG Boot Loader Version 1.0.16 (Built on Feb 28 2011 at 13:14:54 by cisco)
Board Revision 0.0 (SN: PSZ163201YR, Type: AIR-CT2504-K9) (P)
Verifying boot loader integrity... OK.
OCTEON CN5230C-SCP pass 2.0, Core clock: 750 MHz, DDR clock: 330 MHz (660 Mhz da ta rate)
CPU Cores: 4
[Code].....
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Aug 8, 2012
I have 8 2504 controllers and each needs to have a minimum of 20 MAC addresses added. I would rather not add them one at a time but I don't see any features that allow for an import. Any way to do the import?
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Nov 4, 2012
We have 1 WLC + 17 AP's on our main site and thats working fine... we just buyed a new AP for a new site of us. Its the same domain, same ip range nothing special at all... Somehow the AP on the site keeps rebooting and the users getting nervous of it there
Specs:
WLC: AIR-CT2504-K9
Software Version: 7.2.110.0
AP:AIR-LAP1042N-E-K9
Software version: 7.2.110.0
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Apr 4, 2012
AIR-CT2504-25-K9 will support AIR LAP1142N-E-K9
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Sep 6, 2012
I configured a 2504 controller with two LWAPP Access Points, and I'm using two SSID's on the same controller, the problem is when the user tries to switch between SSID's he gets an error message saying that the other network is unavailable but if he disconnects from the first network and then connects to the other it works fine !.
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Apr 9, 2013
some computers is connecting to AP that is farthest, But there are two APS closer and the signal gets too low, the computer only connects to the closest AP if I disconnect and reconnect.I have 2 controllers series 2500 model AIR-CT2504-K9.
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Nov 2, 2012
On the WLC I've set DHCP address pool, everything seems fine after ap download image -> reboot -> hit "Enter" to start blar blar blar... however, after a few second the WLC will initial upgrade image again and again. it's like a non-stop process.
Attached is the start up message, as you can see, i captured it after the ap successfully boot up, and WLC initial another cycle of image upgrade.
btw, my network is flat, WLC & AP all in the same network.
*Nov 3 06:28:30.788: %CAPWAP-5-CHANGED: CAPWAP changed state to JOIN
examining image...!
extracting info (292 bytes)
[Code].....
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Jan 8, 2013
I have bought 2504 LAN Controller and my old 1142 wants to configure to accept that Controller instead of old controller. These APs and controllers in far away site and before I go there I want to figure out how can I do following.
1. How can I configure old 1142(Previously connected with another LAN Controller) to accept New 2504 Controller instead of old controller ?
2. What are the concerns do I need to consider?
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Apr 16, 2012
City A is the data center with 2 WLC (CT2504-K9) and a number of AP. City B is a branch with MPLS between A and B. Right now the APs at City B has joined the controller. Users at B is getting ip's assigned from DHCP at City A. How do I configure the WLC so users can get ip's assigned from DHCP server present at B. Option 43 is enabled.
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Jun 2, 2013
tell me when is available for order the High Availability for AIR-CT2504, like:
AIR-CT7510-HA-K9 Cisco 7500 Series High Availability Wireless Controller
AIR-CT5508-HA-K9 Cisco 5508 Series Wireless Controller for High Availability
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Apr 7, 2013
I've just been tasked with setting up 19 AIR-CT2504 WLCs with AIR-CAP3502E APs. The primary objective is to maximize throughput from clients uploading LARGE files over the air.
I need to make sure I config HT 802.11n properly with no support for legacy clients in the 5Ghz band.
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May 20, 2012
We're in the process of upgrading our Wireless AP's from autonomus to LWAP. We're doing the upgrades remotely (we have 100's of sites to do, and it's not possible to be there to console on to each one), using a local computer to upgrade them to LWAP's with the Cisco Upgrade Tool.Having some inconsistent bugs pop up though from time to time.The most common one is that it basically buggers up the IP address after applying the recovery firmware image. It's supposed to keep the IP it had according to the IPFile.txt (for example 172.25.25.4), but it does something very weird... it keeps the last two octets (so 25.4 from the e.g) but replaces the first two octets with a 192.168 address. So the final address in this example after the UpgradeTool has done its work, is 192.168.25.4 - which is compeltely wrong.
This causes it to be unable to talk to the WLC (obviously, with bogus IP information it will struggle), and gives us big problems in that it wont ever come up unless someone can console to the AP and fix it. We can usually resolve the issue by munging about on the switch - switching the port it's connected to between access and trunk and doing some shut/noshut cycles seems to do the trick mostly.
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May 15, 2012
i have out of box 20 AP 1100 LWAP...and cisco 22XX WLC......i need few information
1- what is option 43 in DHCP once i take the AP out of box shd i config static IP for managment
2- How LWAP register to WLC?
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Jan 23, 2013
I have inherited a site where the builders have installed a 2504 controller with 8 access points. Unfortunately they have not created an ap-manager interface when they did the set up. Is there any way I can do this via GUI or command line without going back to defaults?
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Apr 3, 2012
I have AIR-CT2504-5-K9, with 5 access point license support. I buy capacity adder license LIC-CT2504-5A for add 5 access points more. When i try download licence file from tftp server on WLC system i see message "License 1 Failed 1" on WLC. TFTP server message downloading OK.
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Jan 8, 2013
i have AIR-CT2504-5-K9, with 5 access point license support. I buy capacity adder license LIC-CT2504-5A for add 5 access points more. When i try download licence file from tftp server on WLC system i see message "License 1 Failed 1" on WLC. TFTP server message downloading OK.
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Jun 2, 2013
I am using two AIR-CT2504-K9 controllers
Product Version.................................. 7.4.100.0
Bootloader Version............................... 1.0.16
Field Recovery Image Version..................... 1.0.0
Firmware Version................................. PIC 16.0
and 20 access points AIR-CAP2602I-E-K9 Cisco IOS Software, C2600 Software Version 15.2(2)JA, RELEASE SOFTWARE (fc1) LWAPP image version 7.4.100.0
I created 3 SSID:
1. [WPA2][Auth(PSK)]
2. Web-Passthrough
3. [WPA2][Auth(PSK)]
Configuration on controllers is identical. High Availability is configured on all APs. First controller controls only those APs witch have SSIDs with [WPA2][Auth(PSK)], second controller is basically for APs with Web-Passthrough SSID. From the start I have problem, some clients who try to connect to SSID with PSK are dropped or can’t connect entirely, but when they go to the next AP they connect successfully. For example I have Android smartphone and Lenovo laptop, smartphone connects successfully but laptop fails connection to the same AP, but when I take it to other AP it connects successfully. Sometimes smartphones can’t connect too. When devise can’t connect to one SSID it can’t connect to other SSID either. Sometimes there are up to 20 clients tying to connect to the same AP.
When I look into logs, I get these two messages:
Jun 3 08:58:58 192.168.224.1 WLC1: *dot1xMsgTask: Jun 03 08:58:51.176: #DOT1X-4-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:456 Max EAPOL-key M1 retransmissions exceeded for client 7c:e9:d3:f4:74:4d
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Apr 5, 2012
I've got a new CT2504 controller with software version 7.0.220.0 Regarding to [URL]I've tried to configure the internal DHCP on a dynamic-interface, but this is not possible:(Cisco Controller) >config interface dhcp dynamic-interface vlan401 primary 172.16.x.3 vlan401 Interface IP can not be used as internal DHCP server IP It works, if I use another IP (aka DHCP server) in the same subnet or in another subnet. It works also for the management interface.
(Cisco Controller) >show interface detailed management
Interface Name................................... management
MAC Address...................................... d0:c2:82:xx:xx:xx
IP Address....................................... 10.2.x.135
IP Netmask....................................... 255.255.255.240
IP Gateway....................................... 10.2.x.129
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Dec 5, 2012
I have WLC 2504 with 7.2.103.0 software version , & 2 different LWAP 1262n & 1231G with "c1200-rcvk9w8-mx.124-21a.JA" Image.The 1262n is joined to the to the controller and working fine but the 1231G it can't join the controller , the controller says "Join request received from an unsupported AP" !!i will attaches the logs for this AP.
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Aug 18, 2011
I have an AIR-AP1242AG-E-K9 which had c1240-k9w8-mx.124-21a.JA loaded, I followed the link below and upgraded with Cisco’s upgrade tool to c1240-rcvk9w8-mx with no problems at all, after the upgrade I could then see the LWAP on the 4402 controller and had it working a treat.Now the problems begin, I brought it into the office where we have 5508 controllers, plug in the LWAP into our management switch and boot it up I get an IP assigned from the DHCP server and the AP goes into discovery mode but never finds the controller.I have logged the boot process but this does not give much away, our other 1100 series AP’s boot fine,
[URL]
Console Boot Log.
Xmodem file system is available.
flashfs[0]: 9 files, 3 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 15998976
[code]....
And that is where she sits and does nothing more, I have noticed the DNS problems but the other 1100 series LWAP’s boot up after show that same issue.
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Jun 20, 2011
Is it possible to Change IOS of 1252 LWAP AP to Autonomous AP? I have seen some documents for changing Autonomous AP to LWAP and change back procedures.
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May 7, 2012
I have a 1121 autonomous AP which I switched to the lightweight mode by copying the LWAPP ios to its flash and issuing the command boot system flash IOS_file_Name. After that I was unable to associate the AP to my wireless controller because it was continiously rebooting. Unfortunately this AP does not have a console port so I can access the debug and see what is happening. And I was not able to switch it back to the autonmous mode becaus the AP won't accept the Autonomous mode IOS anymore.
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Apr 4, 2011
I would like to convert some 1142N LAP to Autonomous. Is there a way to do ?
I have noticed a new image : c1140-k9w7-tar.124-25d.JA.tar
I don't see a way to replace the image in flash ?
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Apr 29, 2012
I have an environment of Cisco 5508 Wireless Controller and 1142N Access Points. I have a problem with the ratio of concentration of clients connecting to Access points in floors.
Recently I have been turning off 802.11a on the access points and I am seeing increase in client count in a few of acces points.What is the maximum client count supported by these access points and how do i ensure they are distributed evenly on access points?
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Mar 5, 2013
I have a 3502 AP that I am attempting to set back to factory default including clearing the username and password. It is going to work off of 4400 controllers. I have read numerous documents no how to clear the config and password but so far nothing has worked. I can get it into ap: mode but not sure what to enter here. When I do a dir there doesnt seem to be any files. It will pull an IP address via the local router but cannot communicate with WLC.
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Mar 5, 2013
I am installing a small wireless network (for the firs time). The WLAN is connected to a router/firewall and consists of a Cisco 2960-C Series 8-Port Compact Ethernet Switch, a Cisco Aironet 2500 Series Wireless LAN Controller for Lightweight Access Points and a Cisco Aironet 1140 Series g/n Lightweight Access Points (five AP if I get it to work).
My problem is that when a client connects to the access point it does not get an IP-address.
In the WLC DHCP proxy is enabled and Internal DHCP server is used.
The scope is from 192.168.104.65 - 192.168.104.99
The WLC IP is 192.168.104.60
The DHCP server is given as 192.168.104.60
When starting the system I can see the the AP have the IP 192.168.104.66 so it seems the DHCP gives out IP-addresses. I can ping the AP.
When a client connects to the APit is asked for the security key and the client can be seen in the WLC monitor section. The client never gets an IP-address; in the WLC monitor 0.0.0.0 is shown.
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Mar 11, 2013
I am running big wireless network, with 20no of 5500 with 7.0.116.0 version. I have more than 20,000 AP's. If i add some config in primary controller or do some changes or reboot all the AP's are moving to backup controller. this doesn’t have any problem, but many AP's which moved to backup controller are losing VLAN mapping. This happens every time. Primary --> backup, backup --> primary. Both controllers have same vern...same config etc..
AP model: AIR-LAP1252AG-A-K9
Controler model: AIR-CT5508-K9
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Dec 11, 2012
I have a CT2504 at a customer site which does not load the captive portal page correctly nor will it load via HTTP as opposed to HTTPS.So for starters I did what I do with all my CT2504's (which work fine), I configured my Guest network to authenticate via the default captive portal. I then disabled HTTPS and SSH and enabled HTTP managment followed by rebooting the controller. On boot, logging into the WLC management GUI is automatically presented via HTTP as expected.However when clients access the Guest network they are redirected to the Web Authorisation via HTTPS instead of HTTP?In addtion to the above the captive portal page does not display correctly.The preview via the controller works fine, but the client is presented with a page with broken links to the images i.e. the blue strip at the top and the Cisco logo on the right.
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