Cisco Wireless :: Aironet 1140 Dropping Connections?
Jun 4, 2012
I have recently setup one stand alone aironet 1140 with mostly default settings with WPA key. but, it seems sometimes it's dropping the connections. hardly 15 users are connecting to aironet at the moment.
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Dec 19, 2010
I just installed an Aironet 1140 to replace a Netgear ProSafe access point that I had in my network prior. I'm having one issue that I can't figure out though. None of the client PCs can establish a connection to an external (over the internet) VPN server while on the Aironet wireless. If i unplug the AP and plug a PC into the same port that normall feeds the Aironet I can VPN just fine.
Is there any "VPN Passthrough" option that needs to be enabled somewhere on the 1140 that is blocking this traffic for some reason?
i'm running the following IOS BOOTLDR: C1140 Boot Loader (C1140-BOOT-M) Version 12.4(18a)JA3, RELEASE SOFTWARE (fc1) and I've included my running config below
Current configuration : 2092 bytes!version 12.4no service padservice timestamps debug datetime msecservice timestamps log datetime msecservice password-encryption!hostname ap!enable secret 5 [omitted]!no aaa new-model!!dot11 syslog!dot11 ssid MetroC authentication open authentication key-management wpa guest-mode mbssid guest-mode wpa-psk ascii 7 [omitted]!!!username Cisco password 7 [omitted]!!bridge irb!!interface Dot11Radio0 no ip address no ip route-cache ! encryption mode ciphers aes-ccm ! ssid MetroC ! antenna gain 0 speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15. station-role root bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 port-protected bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding bridge-group 1 spanning-disabled!interface Dot11Radio1 no ip address no ip route-cache ! encryption mode ciphers aes-ccm ! ssid MetroC ! antenna gain 0 no dfs band block 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 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15. channel width 40-above channel dfs station-role root bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 port-protected bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding bridge-group 1 spanning-disabled!interface GigabitEthernet0 no ip address no ip route-cache duplex auto speed auto no keepalive bridge-group 1 no bridge-group 1 source-learning bridge-group 1 spanning-disabled!interface BVI1 ip address 192.168.1.3 255.255.255.0 no ip route-cache!ip http serverno ip http secure-serverip http help-path [URL]
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Mar 28, 2012
I try to setup a 1141 aironet AP to authenticate my user through our Ms Radius Server ( Win 2008 R2).Everything is fine with small Bussiness AP WAP4410N with the following configuration:But I can't setup successfully the aironet 1141 with the same settings and getting it works.Here is my configuration for the Aironet 1141 Vlan 1 is the ssid I want to get it work with Radius.
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Dec 16, 2012
We have 6 aironet 1140's throughout the office I have them all configed as one ssid but I would like the DHCP to come from our Windows server. Right now I have set them up with ip dhcp pools. So what is the secret to get them to send dhcp requests to the Windows server?
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Dec 10, 2012
If I do a speed test (bandwidthplace.com) while connected to a remote locations 1140 standalone access point, the download/upload speeds are roughly 100kbps. There are no other devices connected to the access point at the time. Wired PCs on the LAN that the access point is connected to are not having a problem.Pings from the laptop, through the access point, to our central WAN router are at <10ms.The WAN circuit (remote location to headquarters) is 5Mbps. No congestion.Circuit out from headquarters to I'net is 50Mbps. No congestion.Access point and router interfaces show no errors or collisions, etc. The configuration is the same as 28 other standalone access points in 28 different LANs on the WAN. They have no problems.
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Aug 8, 2012
I have an Aironet 1140 AP that will not connect to the network when on PoE (either using a Cisco PoE injector) or a Avocent Switch that provides PoE.
The AP will boot up and and devices will connect to it (the LED changes to blue) but none of the devices can get access to the corporate network or internet. When the AP is powered by the standard power supply, it operates normally, i.e. devices can access the network. Are there settings that can be changed to get the AP to work correctly on PoE?
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Nov 18, 2012
I am using a Aironet 1100 series access point (AIR-AP1142N-N-K9) with IOS version c1140-k9w7-tar.124-21a.JA1. I want to create two seperate SSID's on the access point with WEP encryption. There is no VLAN configured and i want it to be like it. Also I need to broadcast both the SSID's at the same time, so the some of my users need to login with the first SSID and the others to login through the other.
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Oct 31, 2012
Just a few days ago, one of my coworkers computer was unable to see any of our wireless access points - all aironet 1140. He is one of two using a Win 7 machine, everybody else uses Mac with either Lion or Mountain Lion. The Macs can "see" and connect to our wireless AP's just fine.
The odd thing is that is his computer can pick up our neighbors wireless access points, but can't "see" ours. Also, a few peoples phones can no longer detect them either - both iphone 4's (ios 5.1.1 and 6) and androids (2.3 and 4)
No changes were made to our AP's, then people started having wifi issues.
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Nov 6, 2012
The command that is given returns an error at the letter a in archive. The command I used was: archive download-sw /overwrite /reload tftp:// obviously with my tftp server info and file name at the end. I logged in with privileged EXEC mode as directed, but archive is not listed when I type ? to get a list of commands. I need to have this AP up and running by Monday.
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Dec 28, 2011
For some time now I have been looking for a good business class wireless AP. I've narrowed it down to the Cisco Aironet 1140 standalone (no controller). I'm no stranger to Cisco products. I've worked with their routers, switches and Pix/ASA firewalls. However, I've not had the opportunity to work with their wireless AP's. Anyone using these AP's (more specifically the 1140 standalone), can provide information on the reliability and security of these devices. Some of the features I would like to have like Radio Mgmt. and Rogue AP Detection I see are only available on the controller based units. Does not having these features on the standalone unit reduce its reliability and security? This is for a small business and the budget does not allow to drop for a controller at this time.
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Apr 26, 2013
I wanted to know if anyone can say with certainty how many clients can stay connected 'Aironet 1140 series. I state that I should connect WiFi in about 350 clients.
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Mar 25, 2013
I am having an issue with my Android Tablet running 4.1 (Jelly Bean). It is able to the SSID, but when I try to connect - it stays connecting and then says saved, and never connects, as it does not pick up an IP address. I updated the firmware on the Aironet 1140 due to my Windows 8 pc's not connecting as well, it solved my Windows 8 problem, just not my Android Tablet problem. My Ipads do work. Just any android device I connect.
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Nov 26, 2012
I've got an AIR-AP1142N-E-K9 access point, i've got the Radio0-802.11n(2.4ghz) enabled and the 5.0ghz disabled.
i've got my client real close to the AP and i only get a connection speed of 72Mbs.
Shouldn't i get 150mbs? Maybe some wrong configuration?
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Sep 17, 2012
I recently changed the configuration of my Aironet 1140 from WEP to WAP2-Enterprise to make it more secure. I am using the WAP as the radius server. After making the change I connected my Blackberry to the wap as well as a Samsung Chromebook. However when I tried to connect my HP laptop it is unable to connect. Watching from the Aironet's console I see that it is processing the association and windows ask me to enter my uid and password. When I do this I get an authentication error. I have tried several times adjusting parameters on windows but it always fails. Here is the configuration of the WAP:
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
[Code]....
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Jan 10, 2012
I am in the process of installing an Aironet 1140 standalone AP. I have not worked with these AP's before. I will be connecting it to one of the PoE ports on the existing ASA 5505. My goal is to have 2 SSID's, one for internal network and one for guest internet only, no access to internal LAN. I want to have the internal wifi clients and the guest clients on seperate IP networks. The internal clients obtain DHCP from the existing server and use the ASA DHCP server for the guest clients. And of course, I would like the ability to manage the AP from the internal network. I am providing copies of my current configs for both the ASA and Aironet.
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Nov 30, 2011
Users are facing issue since a long time now . Whenever user connected to wireless is idle say 10 -20 seconds he gets disconnected This happens for all the users and even Mac/Win 7 I changed Activity Timeout on AP and even rebooted but still when I do show dot11 associations all-client I see activity-timeout
Users don't get disconnected when there is continous flow of data its only when user is idle
When user disconnects and hit refersh it starts working again
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May 28, 2013
I'm installing the first out of 10 Aironet AP's with an inline injector. The lights on the Aironet and alernating blue, green, red. I know the error code is for DHCP, but when I plug it in I see the AP on my DHCP server and it does pull an IP address. I can ping the ip address, but I cannot access it through my browser.
I have tried deleting the entry out of the DHCP and power it back on again. I have also tried another unit with the same results. I don't have a RJ-45 to serial cable.
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Mar 27, 2013
I just installed 2 new units and neither will connect to a new HP gigabit switch - no link light, other devices can connect to the switch OK. Their gigabit ethernet settings are set to auto for duplex and speed. I also tried forcing one of them to full duplex and 1000 Mbps which didn't work either. They're both powered by POE injectors. If I connect them to a 10/100 switch they work fine.
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Feb 13, 2012
Our office has 4 Cisco Aironet 1140 access points mounted on the ceiling. They are all powered via PoE. Every few days 3 of the 4 access points hang and have to be rebooted. When they hang I am not able to connect to their web interface to check the logs. The fourth, for some reason, always seems to stay alive.
I checked the configuration for all AP's and "Hot Standby" is disabled They are all using static IP addresses. I've tried 2 different banks of static IP addresses and 3 of 4 still hange so I don't think this is an IP conflict. I have saved the configurations and compared them and they are all identical, where possible.
They all have software version: 12.4(21a)JA1
They all have bootloader version: 12.4(23c)JA1
I have tried to download the latest software/firmware, but unfortunately I do not have a valid service contract in place with Cisco and therefore can't download the latest version. All of our CISCO hardware was purchased from Amazon resellers but no luck. I have also tried to contact Cisco and they can't seem to assist either. How I can get a valid service contract that information would also be very useful!!!
why 3 of our 4 access points would hang? When they hang, I can't login to the web interface and the logs seem to reset when I reset each access point. I have also set up an rsyslog server and I don't see a log entry that would indicate a problem.
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Feb 6, 2012
I've got two Cisco Aironet 1140 Access Points in my office. They're both setup as AP at opposite ends of the office with the same SSID, so employees can walk throughout the office without losing connectivity. We recently re-started one of the AP's, but ever since the re-start, users cannot roam from one AP to another without dropping their internet connection to the outside world. In other words, if I originally connect on Side A and walk over to Side B, I lose my internet connection. Users can still access the internal network, and I can launch the web interface for both AP's. But, it seems like the DNS doesn't recover until I go back to Side A.
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Aug 2, 2011
I've set up a Cisco Aironet 1301 AP to be used for a guest network. I've got several other of the Aironet 1140-series around the business but none of them are in reach of this one at the moment.
The problem I have is that clients that try to connect to the AP are either not able to connect at all or lose their connection after some seconds. The config is more or less copied from the other APs with the same guest VLAN.
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Apr 11, 2011
In our project we are building a smartphone application dat determines the locations of persons in a building, using Wifi access points.Using 3 accespoint we are calculating the overlap of 3 circles.Today we measured the signal strength and found out that it changes around alot.So we dont really know if our measurements are right.
We would like to know what the RSSI strengths are of the following access point per meter.Cisco Aironet 1140 2.4 ghz
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Jun 3, 2012
I have a Cisco Aironet 1140 with ENABLED broadcasting SSID, encryption is WPA2(personal). Ubuntu 12.04 and Windows 7 are authenticated, but MACBooks never be authenticated. Any specific configuration for MAC books?
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Oct 12, 2012
We have been successfully using our Aironet 1140 AP in standalone mode with mainly Windows pcs & laptop users, and now, iPads and iPhones. All seem to connect happily through the 1140.
Recently we have a requirent to be able to use Apple's Airplay. Basically, it is not working through the 1140, it works ok via wired ethernet. Can the 1140 support Airplay? - If yes, what precisely must be enabled/configured?
We have a single Class C network without any Vlans. I understand multicast must be enabled, I can't see where to enable this. How to get this working if it is at all possible.
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Jan 25, 2012
I bought 2 Cisco 1140 series Access Points a couple of months ago. We would like to use PEAP to autheticate with Microsoft IAS Radius Server & Active directory. I cannot find a document which describes how to setup this type of configuration. The only document which is close is how to setup LEAP & with ACS: [URL] I initially followed the 'TechReplublic's Ultimate Guide to Enterprise Wireless LAN Security' which has all the steps to setup Radius server, client side configuration, Certificates and finally a handy excel script to generate a config for the AP. This did not work. [URL] I am now trying to configure the AP using the Web GUI. I can see the network on the client machine but when I try to connect it timesout.
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Sep 28, 2012
For 2 year now we have been running aironet 1240ag access points throught our warehouse. We use a telnet session on our handheld scanners to connect to our database on the main server.This last week our scanners started getting dropped from the access points serveral times throught the day and often would continue to get dropped at 1 minute intervals for several minutes at a time. This appears to be happening on all of our access points and is affecting all of our scanners but not at the same time.Each time a clinet is dropped we get the following event log on the AP.
Sep 29 11:57:14.807 -0500 Warning Packet to client 0c77.1a3a.6ff7 reached max retries, removing the client
Sep 29 11:57:14.800 -0500 Information Interface Dot11Radio0, Deauthenticating Station 0c77.1a3a.6ff7 Reason: Previous authentication no longer valid
All the AP's are setup the same with the below config
!! Last configuration change at 14:24:18 -0500 Sat Sep 29 2012 by Cisco! NVRAM config last updated at 14:24:18 -0500 Sat Sep 29 2012 by Cisco!version 12.4no service padservice timestamps debug datetime msecservice timestamps log datetime msec localtime show-timezoneservice password-encryption!hostname AP_10!enable secret 5 $1$lcac$OO/IqOlgR2.TPP/BFg7nX1!no aaa new-modelclock timezone -0500 -5!!dot11 syslogdot11 activity-timeout unknown default 128dot11 activity-timeout client default 128dot11 activity-timeout repeater default 128dot11 activity-timeout workgroup-bridge default 128dot11 activity-timeout bridge default 128!dot11 ssid jefferson377 authentication open guest-mode infrastructure-ssid optional!power inline negotiation injector 9caf.ca01.d818power inline negotiation prestandard source!!username Cisco privilege 15
[code]....
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Mar 6, 2013
I have 2 AP541N's set up using a WDS bridge, broadcasting a single SSID. I am using WPA-PSK for the bridge and WPA/ WPA2 and CCMP (AES) on the SSID. I only have around 75 (Mac, PC, iPad, iPhone and Android) devices that use wireless. Some are laptops that roam around from AP to AP, and are using LAN when they are not roaming. I have increased the roaming agressiveness on PC clients and this doesn't seem to have resolved the weak connection. At most, I have 50 clients trying to access the wireless at one time. My problem is that they keep on dropping the connections and have real problems reconnecting once it's dropped. After 4 or 5 tries, they may or not be able to reconnect.
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Aug 22, 2011
I've got a DIR-651 that does one of two things regularly:
1--drops all wireless connections momentarily, then re-establishes them (happens multiple times a day)
2--drops all wireless connections and has to be reset (happens every 0.5-2 days)
#1 wouldn't be a big deal, except that I keep VPN connections on two systems and have to re-establish them every time this happens. I should probably also note that this happens even on the weekends, when those two systems are not VPN'd in.
It has done this since day 1, and the firmware update did not work.
What HW version is your router? A1 What FW version is currently loaded? 1.01NA
What ISP Service do you have? Cable What ISP Modem do you have? Stand Alone What ISP Modem make and model do you have? Scientific Atlanta 2203C
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? done Turn off QoS options. done Turn off Advanced DNS Services if you have this option. done Turn on DNS Relay under Setup/Networking. done Setup DHCP reserved IP addresses for all devices on the router. done Ensure devices are set to auto obtain an IP address. done Set Firewall settings to Endpoint Independent for TCP and UDP. done
What wireless modes are you using? mixed B/G What security mode are you using? WPA-Personal What wireless devices do you have connected? 3 laptops, 1 desktop, 2 Blackberries, 1 printer Any cordless house phones? yes, DECT 6.0. Did not interfere with previous Netgear or 2Wire routers. Any other WiFi routers in the area? up to 5 others, but they are all far away and my house has thick stone exterior walls
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Jan 22, 2012
I'm having a problem with my clients dropping the network connection constantly throughout the campus. I am using a Cisco 5508 controller and the APs are LAP1141N. At first I thought it was a roaming issue but I tested with only 1 AP and the problem persisted, I can tell you that we don't have interference problems and that our old linksys APs used to work without flaws.
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Apr 26, 2012
We have with AP541N-E-K9 on the latest firmware.
Our AP541N-E-K9 keeps dropping all WLAN connections and will not allow us to connect via WIFI. I have to switch the unit off and on but even so sometimes it will take 10 mins for the WLAN to accept new connections. Nothing has changed on the network for months as it is a very basic scenario ie Draytek DSL Router -> Cat5e cable -> AP541N-E-K9, thats it! The AP is really only used for guest access and may have about 15 staff connected via WIFI at any one time.
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Feb 8, 2013
After 5 years of services my DIR-655 begun acting up yesterday; first of it begun by getting REALLY slow, it could take up to 25 seconds to login into the software and up to 30+ seconds just going from one menu to another, on some instances connection (wired) to the router was lost. This morning it started dropping all connections, wired or not; first my iphone then my WDTV, after that it's been pretty much random connections. On one given moment wired works but not wireless, then wireless works but not wired and sometimes I get both but for 3 or 4 minutes.I've reset the router to factory settings, plugged/unplugged, changed cables, network adapters on desktops and the problem persists.
DIR-655 A2
FW: 1.35
Connection: ADSL
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Feb 7, 2011
Basically i got a belkin(on a tight bufdget) wireless n modem(f548633) last week. and when i first set it up it was fine except it disconnectiong everytime ia setting was changed on it and taking ages to reconnect to it.
anyway in the last 2 days its started dropping connections to anyone using the wireless. thing is it doesn't completely disconnect it just goes down to around 5kb transfer but when trying to acces the router through IP it doesn't load unless i disconnect and reconnect. i could deal with this at first as it was once every few hours but now its happening every 5 minutes. i plan on sending it back but thought i'd have one last ditch effort at working this out. my security log shows alot of ACK sends to my IP.
02/07/2011 23:26:08 sending ACK to 192.168.2.4
02/07/2011 23:26:08 sending ACK to 192.168.2.8
02/07/2011 23:10:15 sending ACK to 192.168.2.8
[Code].....
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Nov 30, 2012
I have a Linksys E900 router that seems to drop connections all the time. When I look at the status page, all the IP4 information is gone.
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