Cisco Wireless :: 5508 / 1142n AP - Unjoin Dissociated Intermittently And Random?
Mar 28, 2013
We have several 5508 controller with 1142n access points some access points unjointed from the controller and do not rejoin. It is not always the same access point and it does not happen in any order we can find. All access points may stayed joined for a couple days then one may disjoin, we can bounce the Poe port on the switch and the access point will reboot and rejoin. When looking at the switch port it shows power and link connection to the ap but we can not ping the ap. usually the ap led will be black or out.
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May 9, 2012
We recently moved and upgraded our internet service from 1.5 Mbps to 4Mbps with CenturyLink. However, since our service was activated last Thursday, the internet connection intermittently drops and will not recover unless I reboot the modem. The period of up-time will last anywhere between fifteen seconds to several hours, usually falling along the five-to-ten minute range. No difference when using ethernet/wifi. The DSL light stays on, and the Internet light remains on as well.
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Nov 27, 2012
Ap's at remote location intermittently joins unjoins the WLC controller 5508. AP's getting IP's from DHCP server located at locan end. [code]
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Jul 6, 2012
I have WLC 5508 and 18 1242 APs are connected to WLC. I am getting following error messages in all APs.
*Jul 3 02:53:18.263: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to reset
*Jul 3 02:53:18.320: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Jul 3 02:53:18.326: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to
[Code]......
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Jun 24, 2011
I've got a setup like this:
WLC 5508 v7.0.98
6-7 Autonomous upgraded to lightweight APs - 2 * 1231G while the rest are 1242AG
3 dynamic interfaces, 2 to Corp (diff VLANs) and 1 to Guest
4 WLANs binded to different interfaces
2 to the Corp interface Vlan X
1 to Guest
1 to Corp Vlan Y
DHCP for Corp is provided by their own Win DHCP server while controller is the DHCP server for Guest. Lease time is 1 day.
My problem now is, some clients, at random, loses their IP after being connected to the network. They get a 169.254.x.x. They connect to the Corp network OK, no browsing issues but after a while, they lose their IP address.
They can either wait for a while before getting an IP back or just simple renew their IP on their machine.
I've tried increasing the threshold values in the Local EAP to double its default values and also setting the WLAN session time out values to infinite. However, these 2 didn't work. I'm still having clients that occasionally lose their IPs at random.
I've also noted that this affects clients with WZC wireless drivers and not others e.g. Intel Proset.
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Jan 22, 2013
I have a strange behavior between a WLC 5508 (version 7.0.116.0) and NEXUS7010.
WLC
The WLC is configured in DHCP Bridging Mode (it sends DHCP requests without change)
Nexus
The VLAN interface is configured as follows
interface Vlan501
ip access-group acl-int-vlan501-in-1 in
no ip redirects
ip address 10.12.56.4/21
ip ospf network broadcast
ip router ospf 100 area 10.23.0.0
hsrp 51
Clients can not obtain an IP address intermittently. If I deactivates the ACL when the problem appears(when the client can not obtain an IP@) the probleme is resolved
Note: Before the WLC was connected to Catalyst 6500 and worked properly for 2 years (with same configuration)
I saw this note about differences between DHCP relay on the NEXUS7000/NXOS an Ip helper one the 6500/IOS URL. Do you think the problem may come from the DHCP relay or ACL on the NEXUS.
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Dec 29, 2012
Network running about 60 computers, most of which are running windows 7 professional. Some are on a domain, some are not.At (seemingly) random times, some computer on the network will lose the ability to browse websites (including the web interfaces of networked devices). I can't identify what circumstances cause this to occur. I only find out about it when someone calls me.From the affected computer:I can ping sites I can ping our Cyberoam UTM (which acts as our DNS, DHCP, and firewall)disabling/enabling connection doesn't fix the problem releasing/renewing ip doesn't fix the problem flushing dns doesnt fix the problem uninstalled antivirus on two test machines, problem still randomly manifests.replaced the Cyberoam with newer model users have claimed that if they wait a long period of time (40+ minutes) the problem sometimes resolves.rebooting the computer resolves the issue until it randomly occurs again changing the computer's mac address also resolves the issue until it randomly occurs again.
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Jan 24, 2012
I have run into a major issue with an autonomous Cisco 1142AP. We were in the midst of a firmware upgrade when something went wrong and caused the AP to reboot in an error mode. Basically the unit was flashing Blue, amber, red. We unmounted the unit from the wall, connected to the console, and it would now only flash red over and over. We pulled out the cisco guides and performed a factory reset on the unit. This still does not work. and the contents of our flash directory is empty. All we get is a ROMMON AP prompt on the unit. If I issue a set command, I can see the default settings for IP, netmask, etc.
I cannot access the unit via the network, even after setting IP info and matching it up to my laptop. Since I have no network connectivity, I can't TFTP a new IOS file to the unit. I am stumped. How to get the config as if it was out of the box, or an alternate way to TFTP to the unit? [code]Notice the lines in red, I must have typed someting incorrectly.Now once the unit boots after being reset, I cannot even type in the CLI. Someting majorly screwed up here. Can the bootstrap be reinitialized?
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Dec 6, 2011
Now, with all the unified communications, voice, video and data are in the same device, and I try to give priority to voice and some applications, but in the WLC I can not find the way to mark all that kind of packets.
Is it possible to do that? like in a LAN making the marking as voice, signaling and any kind of application? as I marked in all the LAN.
the equipment:
WLC 5508 v7.0.116
AP 1142N
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Jul 10, 2012
I been using 1142n Autonomous several times.Now i have new requirement to setup 12 LAP 1142n, using a WLC.Can suggest what model of WLC should i choose?? About 30 users, in a cargo warehouse invironment.Now it is a good time for me to learn & play around with WLC.What else should i need in order for LAP & WLC to work??
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Apr 30, 2013
Need to configure Cisco 1142 N access Point togetherwith the Cisco Switch . I have a POE Switch 4510 and Cisco 1142 N Cisco AP . I have one management vlan 5 & User VLAN for WIFI VLAN 10 . The problem is when i make the POE port which is connected to the AP as trunk port means : [code]I am not able to ping the management IP allotted from VLAN 5 . However when i make it as access i am able to ping the managament IP . But for both the VLANs to work it should be in trunk mode & in cisco i can either assign the port as access or trunk .Post this i would configure the 1142 N with Cisco SG300-10P POE Switch . I guess if issue with my 4510 gets resolved the same way i can configure SG300-10P as well .
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Apr 16, 2013
I just purchased an Aironet 1142n and need to configure/set it on one subnet in our WAN and ship it to another subnet on the WAN.
I have not been able to access the unit using a network cable from a pc direct connected to the Aironet. The pc's ip address is set to 10.0.0.2 I can not get to the access point thru the web interface using 10.0.0.1.
When I attempted to access it using a Hyper terminal connected to serial port and console port it loaded a list of software and updates and then reported that it shut down and I could not do any thing with it.
What must I do to be able to configuer a static IP and assign it an SSID and Security settings? How can I access the web interface? I have reset it by uplugging the power cord and holding down the Mode button while I plugged back in the power cord and holding it until the light turned amber/orange. Currently the light is solid green with the ethernet port direct connected to the nic card on a desktop.
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Jun 6, 2012
I have a question with the CAPWAP command. Typically, when I get 1142N from our provider, they have no configuration on them and all I need to do is enter 4 lines of code all starting with CAPWAP and then I have them join the controller and finish the config. This one I just received looks like it has an IOS image or configuration on it. (You can do a show run). I can: show CAPWAP - but I can not enter any CAPWAP commands. They are invalid input detected at marker. How to I get to the point where I can enter my CAPWAP commands ??
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Apr 30, 2013
I have two SSID's configured and I want them both on G and N but it looks like the speed is some way limited to 54mbps. I guess the encryption is not the problem as it's ciphers aes-ccm which support higher N-speeds.
my running config attached, that should be lovely as 54mpbs is too slow
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Feb 9, 2012
How can I have access to the cisco "AP#" prompt? When I try to acees the AP through hyperterminal, it gives me the attached messages. The message keeps looping and not letting me access the AP# command prompt to assign an IP address so that I can control it in mode HTTP.
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Sep 30, 2012
I am currently switching out our Cisco 1130 APs and Cisco Small Bussiness APs for Cisco 1142Ns (I will NOT be using a WLC),
I have setup the AP, and read about some issues with Multicast and Apple Bon. Services.
I ran the "no ip igmp snooping" command and it allowed be to access our AirPlay Devices (Apple TV, AirPort Express, Etc), however our 2 AirPrint devices (Xerox 6125N, & Canon IR3220 via AirPrint Activator) are not showing up at all when connected to the 1142 (they work everywhere else).
Everything is on the same subnet, and 1142 is connected to the same switch has the airprint devices, and one Apple TV.
Both our 3500 Series switches are connected via fiber, AP and AirPrint/AirPlay devices are in the same VLAN.
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Jul 31, 2012
10 Access Pointd 1142N setup on vlan 10 and the controller management is in vlan 10.
They get DHCP IP addreses from the controller itself!! I do not have another DHCP server.
Here is what I get wich debug capwap event and debug capwap packet
(Cisco Controller) >*spamReceiveTask: Jul 31 12:21:41.283: <<<< Start of CAPWAP Packet >>>>*spamReceiveTask: Jul 31 12:21:41.283: CAPWAP Control mesg Recd from 10.128.186.104, Port 51743*spamReceiveTask: Jul 31 12:21:41.283: HLEN 4,
[Code].....
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Jun 19, 2012
I am testing our new wireless network using 1 Cisco 2504 wireless controller with 5 licenses 4 Cisco Air LAP 1142N Access Point I configured it very simple for testing There is only one interface and vlan is untaggetd There is also only one WLAN with one SSID Currently security setting is WPA + WPA2 + PSK (I also tested with no security setup) Wlan session time is diabled and controller user idle timeout is set to 1000000 (Max)AP boot version is 12.4.23.3 and ISO version is 12.4(23c)JA3 Problem is clinet(iphone) does not automatically associate with 1142N Access Point even after it learned network. Phone has to be authenticated again to connect to network same iphone can automatically associate with old 1220 Access point but not with New AP if I urn off and turn back on wifi from iphone, it does see the network but does not connect but I have to manually reconnect to it with password I want iphone to connect known network without reauthentication process after iphone's wifi function is turn on?
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Oct 8, 2012
Need simple configuration for the Aironet 1142N? Optimally, I would like to place 802.11b/g traffic on the 2.4 GHz band and 802.11n traffic on the 5 GHz band.
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Apr 30, 2012
My co-workers and I have been trying to diagnose a problem that recently started occuring on our AP1141N and AP1142N units. I have found a handful of posts that talk about this issue, but none with a solid solution. It seems that as often as every 24 hours, the radio interfaces change state to down, for seemingly no reason. Once this occurs, the only way to bring the radio interface back up is to reboot the AP. As far as we know, this wasn't happening until recently, when we enabled the "N" speeds. Things were working correctly for a year or two while the APs were configured just for b/g operation. The following is the only seeminlg-relevant thing that shows up in the logs:
*Nov 12 00:53:02.508: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Nov 12 00:53:03.507: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down
Some additional info:
- All of the APs are connected to PoE Cisco c2960 switches
- We have tried both hard-coded radio channels, and non hard-coded
- We have tried various ways setting power inline negotiation
- We are not using a WLC
- System Software Version: 12.4(21a)JA1
- Bootloader Version: 12.4(18a)JA3
I have attached output of sh run, sh log and sh controlers dot11Radio0. (Another oddiy - the line %DOT11-2-RESET_RADIO hasn't shown up in the other logs I have viewed after this issue occurs...)
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Aug 1, 2012
I would like to enable "client isolation" on an autonomous, standalone 1142N AP but I don't see that option anywhere in the web interface. how to keep associated clients from passing traffic to one another on this AP?
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Jun 7, 2012
I'm looking for a way to monitor client authentication failures with our 3 standalone 1142N APs. I know that I can see failures under the log viewer of each AP
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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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Aug 9, 2012
I've just recently purchased the Aironet 1142n and am hoping to set it up as a repeater. I've followed the documentation here: [UEL] but am still having problems.
What I'm trying to achieve is: I have an adsl router (TP-link W8960N) at the front of the house but the wireless signal does not reach all the way to the end of the house. I am trying to set up the aironet 1142n to act as a repeater and place it in the middle of the house and hopefully that will extend the wireless signal to the end of the house and remove the dead spots. I would like to do this without having ethernet cables running all over the place and have been trying to configure the aironet 1142n to no avail. Every time I set the aironet 1142n to "repeater" it automatically coverts back to "access point" under role of radio network.
I guess my main question first of all is, can I set the aironet 1142n as a wireless repeater? And if so, where am I going wrong in my configuration?
I've just read that " Repeater access points running Cisco IOS software cannot associate to parent access points that that do not run Cisco IOS software."
Does this mean the aironet 1142n set up as a repeater will not work if the original access point (in this case, the TP Link adsl wireless router) isn't a cisco brand?
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May 5, 2011
I’m configuring a Cisco 1142n AP in autonomous mode. The networking part is successfully working, multiple VLANs, SSIDs etc. I would like to configure one of my wireless networks to work with WAP2-PSK and the other with WPA-PSK.I’m confused as to what encryption to set on each radio and the ciphers to use on the SSID for each vlan to enable the best possible security. I’m not using a RADIUS sever in my network .point me in the right direction with the right CLI commands?
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Mar 3, 2013
I will now install a Cisco WLC 2504 and 18 AP´s ( 1142n).
Client has a Cisco infrastruture with Cisco Switch´s 3750x and others.
We expected to have :
1. Managment Vlan to add WLC 2504 and the AP´s ( DHCP server should be reached on this Vlan)
2. Configure a trunk in the switch port where the WLC will connect, allowing vlan´s that we choose to reach.
3. configure WLC ( ssid´s, Vlan´s, interfaces).
4. Configure AP´s.
Is there any basic setup that i missed for things to run ?
Normally I create DHCP reservations for AP`S and for Clients in diferent Vlan´s:
Mgmt Vlan 100: 192.168.0.xx
AP´s vlan 101: 192.168.1.xx
Clients Vlan 102: 192.168.2.xx
All this ones should be created as interfaces on WLC?
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Dec 10, 2012
I have a issue with 1142n.If I start from 15 sessions per AP then it becomes a very costly affair. Because there are almost 20.000 student.20,000 students * 60% concurrent use divided by 15 = 800 APs.what is a realistic number of sessions on this AP? What is max concurrent connections on this AP?
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Jan 17, 2013
I have a Cisco 1142N configured in autonomous mode.I'm running on:Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 15.2(2)JA, RELEASE SO FTWARE (fc1)
I can loggon to the web interface but it won't show me th expected status information.
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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 7, 2013
I am running the demo of the virtual WLC and have one 1142N AP connected to it. I have two WLAN's created and they are configured to broadcast their SSID's. However, when I look on my laptop or Android, I cannot see either of them. I checked the AP to see if it has the WLAN's on it and it does. I did this by going to Wireless -> Access Points -> Radios -> 802.11a/n AP Interfaces -> Details. Under Station Configuration Parameters -> Number of WLAN's, there are 2, which is correct. I had this demo running on VMware workstation and had some bridging issues with it and thought that was the issue. I now have it running on ESX5.1 and am still having this issue. I am at a loss as to what is causing this problem.
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Apr 15, 2012
Apparently converting autonomous 1142N to lightweight is not supported by ether WCS 7.0 or the Upgrade tool. The option is to do it manually with CLI, but there is about 200+ AP's that need converting. We can't do them all at the same time. We have to do it building per building.
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Jan 23, 2011
Background: Cisco 4400 series WCS w/ Cisco 1142n LWAPs. Clients are HP Elitebook 2730p notebooks with Intel 5100 wifi chips.I was installing Dragon Dictate on several users tablets this weekend. I was ready for the 1 hour install. I noticed that one of the computers was done far quicker than I expected. The computer had a wired ethernet cable attached to it's docking station. The other 3 were accessing the network via the wireless. I did some checking on the WCS, and the other three notebooks were downloading files at a whopping 8 Mbps each. The server that they were. downloading from is attached via gigabit ethernet, and was little utilized. All three notebooks reported that they were connected ~80Mbps to our 2.4GHz N network. I'm willing to accept that wireless is going to be slower than wired, but this seems extreme. The three tablets were connected back to the same LWAP, which is connected to a gigabit switch. There were only three other people in the building at this time, so network congestion isn't an issue.
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Aug 22, 2012
I have about 200 APs (Cisco 1042n and 1142n), 4 controllers (5508 and 2504).. Switches are 2960s and some other stuff.. I Use NCS for management.We have a couple of vlans and SSIDs, when users connect to a SSID i use Flexconnect to associate the users to the correct VLAN.
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