Cisco Wireless :: 2112 WLC Using All Of 5.0 Ghz Channel?
Sep 25, 2012
I have a 2112 wlc and 6 1142ap's. I noticed that the 2.4ghz channel is filled with lots of networks but the 5.0ghz area is empty. I tried to manually change the channel but it keeps reverting back to 2.4.
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Jan 4, 2012
we are trying to configure WLC 2112 with LAP 1042 but getting following erros on LAP1042. It show the Ap is not supported in controller version 6.0.199.4
*Jan 5 16:52:13.397: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 192.168.2.101 peer_port: 5246*Jan 5 16:52:13.398: %CAPWAP-5-SENDJOIN: sending Join Request to 192.168.2.101*Jan 5 16:52:13.399: %CAPWAP-
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Nov 8, 2012
Do we have enable mod eon 2112 WLC ? Also if we need to access WAP from WLC how can we telnet or ssh?
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May 10, 2012
My company has a lot of thier business relying on the wireless network and I am trying to reduce the single points of failulre in my network infrastructure. We have a single Cisco 2112 controller with 10 AP's that I am wondering if it's possible to cluster this with another controller for redundancy purposes?
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May 16, 2013
I have a Mesh architecture with 2112 WLC and 1042 APs I want just to know if I can connect one 1310 AP to the ethernet port of a mesh 1042 AP with ethernet bridging enabled.
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Jan 2, 2012
I am having a trouble with using iTunes, iPhones and iPads on our Wireless LAN. We have the 2112 WLC and 10 1142N WAPs. If I do a network scan, I can see the Apple TV and see that port 5353 is open, which is Apple's Bonjour service. However, if I try to play music/video in iTunes, or on an iPhone/iPad, I do not see the Airplay icon. If I plug into the LAN, the Airplay icon appears immediately. I have created an allow all rule in the ACL but still no dice.
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Mar 11, 2012
I have 8 no. AIR-LAP1131AG-A-K9 and WLC 2112 Wireless LAN Controller,i configured the device and its working at deffent SSIDs but when i am trying to enable same SSID on all LAP it shows "AP on dupplicate SSID found and Layer 2 security found".
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Feb 8, 2011
I am having a problem using my Windows IAS radius server to validate management users for my 2112 Wireless Lan Controller.I have defined the radius server and it works ok with the policy for validating wireless clients but not for WLC management users.The Remote access policy seems to be set up correctly as the event viewer on the server shows:-
Event Type: InformationEvent Source: IASEvent Category: NoneEvent ID: 1Date: 09/02/2011Time: 11:06:06User: N/AComputer: UK01DC07Description:User xxxxxx was granted access. Fully-Qualified-User-Name = TRAVEL.OAG.com/Dunstable Admins/xxxxxx NAS-IP-Address = 10.10.45.210 NAS-Identifier = UK03NM01 Client-Friendly-Name = UK03NM01 Client-IP-Address = 10.10.45.210 Calling-Station-Identifier = <not present> NAS-Port-Type = <not present> NAS-Port = <not present> Proxy-Policy-Name = Use Windows authentication for all users Authentication-Provider = Windows Authentication-Server = <undetermined> Policy-Name = UK03NM01 - login Authentication-Type = PAP EAP-Type = <undetermined>
....
But, the WLC log shows:
*Feb 09 11:06:06.612: %EMWEB-1-LOGIN_FAILED: ews_auth.c:2104 Login failed. User:xxxxxx. Service-Type is not present or it doesn't allow READ/WRITE permission..
The WLC just returns the login screen
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Mar 21, 2012
We recently purchased a 2112 WLC, running version 6.0.199.4. I have everything running through a single port on the controller, which is connected to a trunk port on our 3750 stack. Our management VLAN is vlan 40, and AP is plugged into another port on the same switch which is an access port in vlan 40. APs appear in the controller ok, receive an IP address, but we aren't able to connect to any of the WLANs and periodically the APs will disassociate with the following messages: [code] I'm not sure if that's related to why we can't connect to the WLANs or not...
Another wrinkle is that if we plug in the AP directly to one of the PoE ports on the controller, it all works perfectly. I'm guessing its something switch-related since the only difference is that we're not going through the switch when it works.
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Jan 18, 2010
I've read some opinions that lowering the RTS threshold can facilitate in some noisy wireless environments. I have found how this can be done on standalone APs but cant seem to implement the change on a WLC 2112. How to do it.
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Dec 16, 2012
We are having a 2112 WLC and LAP1042 access points and facing a client disconnection issue. Also signal strength is varying even when client is at steady position. We have a single SSID structure and clients are connecting through 802.1x authentication with WPA2. Access points are joined in H-REAP mode. We also tried by creating a new SSID with open authentication and even on that SSID signal stregnth is varying and client is getting limited connectivity. Attached are the debugs for a particular client and the show tech support for WLC.
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May 22, 2013
I have one cisco wlc 2112 with ios 7.0.230.0 with license to support 12 access points. My access points are nine (9) lap1231ag and one (1) lap1310.I just have one wlan (ssid). My scenario of deployment is in layer 3. I have one interface management and ap manager in the WLC. All my Access Points have differents ip address that WLC. I need to configure a unique ssid to associate my six (6) dynamics interfaces (each dymanic interface with different vlan subnet).Each wlan profile (ssid) should have the same security in phase 2 (wpa2/psk). My cisco access points don't support hreap. My wlc support only (4) interface into an interface group, and i need six (6) dynamics interfaces.
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Mar 2, 2012
Airlap 1041n i have air lap 1041n(soft version 12) and wlc 2112 i dont have dhcp server perhaps i use tftpd32 to act as a dhcp server.
my problem is
1. i have configured the wlc 2112 and it's ip is :172.25.1.1
2. i cant configure the air lap 1041n. when i enter the cli mode the following message comes ****continuously***:
Could not discover WLC using DHCP IP. Renewing DHCP IP.
*Mar 1 01:44:11.310: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!
3. my question is how to stop this continuous mgs ?
4. how can i assign an ip to my AP ?
5. how can i join my AP with MY wlc ?
I have to show my office that i can control two ari lap 1041n-k9 with my WLC 2112 and my laptop's wifi and cellphone's wifi are able to get connected with the Access points.
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Jan 4, 2012
I have a client with a 2112 WLC and 1252AG radios. The clients work fine, but an SNMP management server can not reach any of the clients over the wireless. Before the WLC and new AP's were installed, they were running older Cisco Autonomous AP's and had no problems with SNMP. My monitoring system uses SNMP and it can reach the WLC just fine, so there doesnt appear to be any issues on the switched network. What can be blocking the SNMP on the WLC?
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Oct 16, 2011
how to configure the backup port for the management interface for a WLC 2112. I see in the documentation that it states:
"Each interface is mapped to at least one primary port, and some interfaces (management and dynamic) can be mapped to an optional secondary (or backup) port. If the primary port for an interface fails, the interface automatically moves to the backup port. In addition, multiple interfaces can be mapped to a single controller port."
But nowhere can I find where it says how exactly to do it. Google seaches have come up empty as well. I am connecting the WLC to a 3750 stack, and would like to have a secondary port from the WLC connected to the second node of the 3750 stack. So far I have connected port 1 (management) of the WLC to a port on node 1 of the stack which is configured as a trunk and everything is workign fine. I have also connected port 2 from the WLC to a port on node 2 in the stack that is configured the same as the port on node one. how to tell the WLC to use port 2 as the management backup if needed.
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Mar 8, 2012
I got new cisco aironet 1262n Dual band Access-point running IOS version 12.4(23c)JA .my question is does this access-point support 40 MHz channel width on the 2.4 Band on any IOS version as the command "Channel width" under interface dot11radio 0 allow only 20 MHz
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Dec 16, 2012
Since the update of our WLC 4402 to v 7.0.253.3 all 17 accesspoints are using channel 1 !!
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Mar 16, 2013
I have been having some connectivity problems and one suggested solution was to upgrade networking firmware. I did this for our router (Cisco RVS4000 v2) and it didn't work, so I moved on to the wireless access points (two WAP4410N). Before doing that, I also reset both to factory default settings - neither would respond to pressing the reset button but it seemed to work using the web interface for both.
Before I did anything to the WAP4410Ns, I noticed they were connected in B/G/N-Mixed mode to channel 6. Now the wireless network mode is stuck on Disable. I can choose B/G/N-Mixed from the dropdown list, but can't choose a channel - the dropdown list for that is empty. And if I try to choose Save after choosing B/G/N-Mixed, it reverts to Disable.
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Aug 25, 2012
How do I change the channel for my wireless router?
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Jan 18, 2013
I have just been setting up a WISM2 in a test lab and for some reason the Supervisor is not creating a port channel on my 6500 as suggested in the WISM2 Deployment Guide. WISM2 is installed in an appropriate slot (according to same doco) and have attempted reset to factory defaults, removing and power cycling several times.
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Aug 27, 2012
I have 3xLAP1242 in a building that are some what close to eachother (WCS show them as Rx Neighbors). The problem is that they are all running the same channel, 1 on 2.4GHz and channel 140 on 5GHz. [code]Ether I get these log messages because they are on the same channel or because there is something blocking the other channels.Can I force a channel change on the LAPs somehow? Not manualy setting the channels, but forcing the LAPs to redo their channel calculation/algorithm.
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Jun 18, 2012
I have 14 unit of Air-AP1142n. No controller. All unit were in a warehouse, each of the AP distance each other around 40mI would like to use only 4 SSID instead of 14 SSID.
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Jan 2, 2013
I want to configure Port channel for WLC 5508 and cisco 3750 Stack Switch. What changes I need to make on WLC and where?
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Jun 3, 2013
We have a deployment with six 1524SB mesh APs. Two are used as RAPs and face east and west respectively with directional antennas and two MAPs on each side with omni antennas. The RAPs are within 20 feet of each other. I set the bridge group name as east or west depending on which side of the mesh the equipment is located but noticed the downlink channel is set to 56 on both RAPs. I don't remember setting the channel for the RAPs, but they aren't using the global DCA.Would best practice be to change the downlink to unique channels on the RAPs, enable DCA (if it will let me), or is a unique bridge group name sufficient enough?
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Apr 25, 2011
We have 3 AP541N units deployed in a doctors office. All of them are set to 802.11b/g/n mode. 2 of these units are used to provide non-secured internet access to patients and are using channel 7. The other AP is for our private network secured using WPA2/AES operating on channel 1. There are several other access points in our proximity using channel 6 and I'm trying to minimize interference.When selecting wireless mode 802.11 b/g/n I have only channels 1-7 to choose from. What I really want to do is change our public wlan to use channel 11 to avoid the other business's AP which are using channel 6.
Should I be using a different mode altogether? In your expereince which mode will provide the best transmission rates and range?
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Jun 6, 2012
In our mesh network. there are 8 root AP and 15 mesh AP . we are using 1552E ,i have few questions on it:
1. If the ap's acting as mesh ap are connected with only 2.4 ghz external antenna, will they have problem joining the root access point to form mesh.
2. How should we set the channel assignments. Do we only set them in root ap's.
3. should the channels be set under 802.11a ?
4.should the channel be manually set or should it be left to be chosen dynamically.
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Oct 15, 2011
I want to change router channels to avoid some interference. But do wireless adapters automatically identify the new channel or do I need to change those too?
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Dec 19, 2012
I downloaded and installed inSSider for Windows and, under the 2.4 Ghz tab, I can clearly see the Router SSID, on Channel 6, exactly as configuredbin the Router. However on the 5 Ghz tab, nothing? I can see Channels 36, 40, 44, 48, 52 and so on BUT no trace of any wireless signal here?I carefully reviewed the wireless settings options and it is indeed enabled.
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Jul 31, 2011
I am trying to figure out what channel my Linksys E4200 is CURRENTLY using (at the time I check it)I am having issues with occassionally losing my connection (mostly from the computer furthest from the router) and it may be caused by a cordless phone , in the room with that computer as I think the problem only occurs when on the phone in that room.So I am trying to determine what channel that it may be using at the time of the drops ...(so I can set it NOT to use that channel)I'm pretty sure it it something on the 5ghz (40mhz)side .but I don't really want to set the router to use 20mhz only as the speed greatly drops when on 20mhz only (i.e. 50mbps vs up to 200mbs when 5ghz is activated)
Checking my Router set up page, I see only what channels is CAN use, not what is currently being used.Is there anyway to identify what channel it is currently using so I can see if it is a specific channel causing the issue and not have to switch off 40mhz?
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Feb 14, 2013
We are currently using a Cisco 2500 (licensed for 50 AP's) WLAN Controller. There has been a lot of issues setting up the VOCERA wireless badges, thats on going. The question I have is all the AP's are showing as being on Channel 6, it was thought that the controller would learn the enviroment and move these to none overlapping channels, but has not. Is this right should they all be on the same channel and not 1, 6, 11 accordingly? it is also worth mentioning that the controller can see 61 rogue AP's, yes that is 61 other wireless networks!
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Jun 6, 2011
I have a cluster of 5 AP541Ns. I accidentally started the auto update of IP addresses based on reduction of interference, and it changed the wireless channels on all of the APs. I disabled it, but he channel settings did not change.Now if I remember correctly, before making this setting, they were all on the same channel, 6. Should they all be on the same channel? If so what setting or procedur do I have to do to get them all back on the same channel? (do I have to manually set the channel?)
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Jun 14, 2011
I have two Aironet 1231Gs, that are both running the same version of fimware: Version 12.3(8)JEE
From the gui, I try and change the channel on the main radio interface--It works from one, and I get just a blank page on the other. When I try and change it via the cli, I use the "channel" command in conf int mode, and it works one the one, but the other one, the "channel" command doesnt exist.
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Oct 9, 2011
I have setup LAG for one of our 5508 controllers and have connected 4 of the 8 ethernet ports to a 4507 switch. After configuring 2 port channels on the switch we are receiving a host flapping error between the port channels and it seems to be causing a serious slowdown on the switch. When I shutdown one of the port channels the error goes away and traffic returns to normal. I have the same configuration at other locations with the only difference being the switches used are 3750G-12S and I do not see the host flapping error. It appears to only be a problem with modular switches.
One other thing of note: I read a Cisco white paper on LAG and it suggested creating the port channels over 2 different modules. For example, put ports G4/24 and G5/24 in port channel 1 and G4/25 and G5/25 in port channel 2. I tried this but I still got the host flapping error.
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