Cisco Wireless :: 1242 Can't Interrupt Boot Through Terminal
Apr 11, 2012
We currently have 8 1242's and they all work fine, however we recently baught one 2nd hand one which was previously connected to a WLC, it lights up fine but it wont detect in IPSU even though the dhcp has assigned an IP to it. I would like to login through the web page to configure it but I am not able to do that either. It responds to ping fine though. So I no longer wont it be a LAP, so I tried to console in, to run flash_init etc. but when I try and give the <ESC> command (during the flash loader) it just carries on and ignores all input. I have used the correct settings Baud rate 9600, no parity, no flow control , databits 8, etc. but nothing happens it just goes through the boot and then asks me to press enter to input. i can then browse the directories and rename files. but I just cant get it to holt the loader so I can reset, I tried rename of config.txt and env_vars but that has't worked either. It keeps stating that it is looking for LWAPP/CAPWAP but unfortunately we don't have a WLC Is there another way I can reset it or is there some magic way in whic I can send the ESC command.
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Jun 7, 2013
when this error occurs
we can't see the cdp neighbor and the wireless crash.
we login onto the ap with console , we can see the error log : “Network interrupt loop detected” . last forever
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Jul 27, 2012
how to resolve high cpu to interrupt.I am getting lots of input que drops in all vlan interfaces.I have enabled multicast in all vlan interfaces. System image file is "sup-bootdisk:s72033-advipservicesk9_wan-mz.122-33.SXI4a.bin"
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Mar 3, 2013
We have next router:
spb-bg3#sh inventory
NAME: "CISCO7604", DESCR: "Cisco Systems Cisco 7600 4-slot Chassis System"
PID: CISCO7604 , VID: V01, SN: FOX1523H7E8
[Code]....
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Feb 22, 2012
" Galileo interrupt: PC10 retry count expired "This error keeps flooding in terminal window so it is impossible to even try to work via consol.With google search, closest thing ive come up to is that this is a faulty with the CPU cache, and that no workaround is available, thus this unit is pretty much destroyed.I am just long-shooting here and wonders if anyone here knows anything more about this before i throw the card in the trash-bin?
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Jan 20, 2013
I've been digging into some performance issues on a LAN that has a couple of 2960s. The monitoring software I'm using has indicated a high amount of discarded outbound packets (up to 5%). The suggested resolutions were to enable flow control.
My question is does enabling flow control on all ports interrupt network traffic at all? this is a production network so I had already planned on doing it during off hours but also wanted to know if I should be prepared for any significant drop in traffic.
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Feb 7, 2013
My company has an 881-w ISR that provides wireless and wired network functions for our small office (about 20 users). I was attempting to create a new V LAN (another story), and was able to create the V LAN (4) and assign it a new IP. However, when i came in today, and when i attempted to connect to the ISR, the serial console started spewing this over and over:
*Feb 8 13:31:32.479: %SYS-2-MALLOCFAIL: Memory allocation of 8 bytes failed from 0x81528DF0, alignment 0
Pool: Processor Free: 131305952 Cause: Interrupt level allocation
Alternate Pool: I/O Free: 17850656 Invalid memory action (malloc) at interrupt level -Traceback= 0x820168A0z 0x82E4
-Process= "<interrupt level>", ipl= 4 -Traceback= 0x81FF6FC8z 0x820168D0z 0x82E49944z 0x81528DF4z 0x800C3AF8z 0x800C4760z 0x810A1208z 0x810A6F8Cz 0x810BA9E0z 0x810BACBCz 0x80241A24z 0x8025ADE8z 0x8025E2F8z 0x8030ACD4z 0x804E1518z 0x80310368z
[code]....
Now, I did leave the console session up overnight, as that's the only thing that I can think of. As expected, our service contract had expired. I did reboot the ISR, and I am looking to see if this can be fixed, or symptomatic of a larger issue, and time to replace? At this point i can't even get it to stop, and thus cannot log in.
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Dec 26, 2011
I'm using two cisco 1242 AG access points to configure WDS feature. I've named the accesspoints as AP1(acts as WDS) and AP2. Since I've only two accesspoints, I've configured the AP1 to act both as a WDS and as a regular accesspoints.Further I'm using the local radius server within the AP1 to authenticate both clients and infrastructure accesspoints. And both APs are connected to a router (which act as a dhcp server) via a unmanageble switch and both accesspoints are getting registered with WDS.But the issue is when I tried to connect to the configured SSID, it promts me a "authentication window" but after entering the configured username and password, i'm not getting authenticated by the AP.
I've attached the configurations of both APs to for your reference and I've used the following cisco document as a guideline to crate the WDS. [code]
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Mar 4, 2013
I'm having a little issue with some Cisco Aironet1242ag WAP's. I receive a call at least twice a month stating that some of the WAP's are not giving out internet connection. What I always do is go to my patch panel and disconnect those WAP's not working and connect them back again so they can power cycle. These WAP's are connected to a Cisco3750g. Once the WAP's boot up, the users can connect to the WAP and connect to the internet.
I don't know if these WAP's are filling up with some information that causes the access points to not connect to the WAN.
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Feb 25, 2013
i would like to know if its possible to connect a wireless router to GPON terminal
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Apr 18, 2011
Is it possible to make a bridge using a 1242 and a 1310? I have been able to get them to associate together and it appears it will function as a bridge. I have the 12(4) 253 JA IOS for both devices. I would like to use the g antenna on the 1242 for the bridge and the a antenna for wireless clients. The configuration on the web management appears to support bridge root and non root for both devices.
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Sep 12, 2011
I am trying to upgrade an autonomous IOS 1242 AP to LWAPP and I am having an issue with finding the right code to complete the upgrade. I have upgraded the AP to c1240-rcvk9w8-tar.124-21a.ja2.tar, but now I think I need a JX version of code to have it join a controller, and I can't find this anywhere on the Cisco site.
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May 9, 2012
i have 1240 series access points which is not joining controller 5500 series. [code]
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Aug 13, 2006
i need to change the IOS in a Ligthwiegth Access point and make it work as an Autonomus AP 1242. I have got the image but im not realy clear about the process. I got to enter the Ligthwiegth Access point true the console port but i dont know how is the upgrading process.
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Jun 6, 2012
One of Cisco Wireless AP 1242 installed in my premises restarts itself; AP is getting power from Catalyst 2960 POE. I am using multiple SSID on this AP. I have issued the show tech-support. I have seen below in tech-support System was restarted by unknown reload cause - reason ptr 0xF, PC 0x46FEB8, address 0x0? what could be the reason of restarting of AP. AP is in production since 1 year and it restarts seldom.
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Mar 24, 2013
When I tried to add new AP 1242 to my network I had following problem:
The Ap was constantly reloading and I was getting message
Wed Mar 20 13:32:12 2013 AP 'UBFT-E06-F0A-R09-0022.901b.a6ba', MAC: 00:23:ab:27:1f:30 disassociated previously due to AP Reset.
%CAPWAP-3-IMAGE_DOWNLOAD_ERR3: capwap_ac_platform.c:782 Refusing image download request from AP - unable to open image file /mnt/ap_bundle/ap.pri//c1240
I decidet to reinstall software on WISM 2 modul (7.2.111.3) this fix the problem and AP joined controller but during this process I have lost connection to 87 AP for 3 seconds and then they joind back again.
"disassociated previously due to AP Reset"
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Feb 9, 2011
I have 3 Cisco 1242 WAPs that I have deployed at a site that has NO RADIUS/AAA devices. I have given all of them a different channel (1,6,11), but the same SSID and crypto (WPA2-PSK). The issue is when a machine boots up it associates with the closest/strongest AP, but as the device "roams" it does not which to a different AP. It stays associated with the original AP until that signal is gone. Then it quickly associates with the closest AP with no problem.
How do I get the device to associate with the strongest WAP? I have research "fast roaming and WDS" but it seems like you need EAP/LEAP and they do NOT have that at all.
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Oct 15, 2012
I have Eight AIR-AP1242AG-E-K9's accross our site that have 2 SSID's and 2 VLAN's that work well, I want to link one of the AIR-AP1242AG-E-K9 to another one using 5ghz patch antennas across a 50 metre gap, but I am puzzled on how to do this, as to create a root bridge and a non route bridge link I need to put the infrastucture SSID on and this must be on VLAN1 but I want the traffic from both VLANs to pass over this link. I just want to ensure the config will work as I need to go into a cherry picker to get to the non-root-bridge.
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Nov 20, 2012
I would like to create a Mesh network using Cisco 1242 AP's running in Autonomous mode via A Channel.
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Jun 5, 2013
I encounter a strange problem on several AP 1242 in version 12.4(25d)JA1 of a customer : He has 10 autonomous AP covering The APs loose LAN connectivity randomly and therefore the clients don't work anymore. The AP are connected on a 2960 and a 3560 wich are in turn connected on a 3750 wich route the trafic.After checking spanning-tree no loops are present. When I check the counters on the AP involved I see the "trhottles" and "ignored" counters incrementing on the fa0 link of the AP impacted wich mean I think it can't handle the incoming traffic. This incoming traffic seems not to be too big however. I can see drops on the switch interface connecting the AP.
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Sep 26, 2010
Currently have access points located throughout our warehouse that use the AIR ANT5160V-R antenna's from Cisco. These AP's are 25' in the air. However we have a lot of voice quality issues off of the 5Ghz band, we do no other services on this band as we keep data on the 2.4Ghz.This was all installed by a vendor but from what I am seeing on the documentation [URL] the cover is extremely poor for these antennas despite AP's everywhere. They cover side to side but aren't a well rounded AP at all.it seems like the AIR-ANT5145V-R would be better suited even though this is a warehouse.
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Mar 8, 2012
we had a problem with a customer wlan in our warehouse (cannel overlapping). The troubleshoot needed a long time. For the future if requipred in case of problems i want to configure one access point in the warehouse as a scanner (please find picture in the attachement). The Autonomous cisco 1242 is now configured as scanner but i can't see any logfiles? Where can i find these informations. This is the cisco description of the scanner mode:Scanner—Functions as a network monitoring device. In the Scanner mode, the access point does not accept associations from clients. It continuously scans and reports wireless traffic it detects from other wireless devices on the wireless LAN. All access points can be configured as a scanner.
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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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Aug 20, 2012
We have 1242-AG series AP which is configured in Rogue Detector mode. After adding this AP to WLC its showing Admin Status of AP as Down.
When i am trying to enable the Admin Status its giving me following error
" Admin status cannot be enabled for AP in Rogue Detector mode".
how to enable Admin Status for Rogue Detector AP.
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Jul 27, 2011
I try to change the AP mode of my LWAPP 1242 from local to bridge mode. But when the AP reboots it never associates with the controller, i have to reset it manually.I have the same issue with a LWAPP 1142.I tried to modify the AP mode configuration through the controller CLI but it's the same behaviour, AP never associates.Is there any particular parameter or configuration to perform before changing AP mode?
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Jun 10, 2012
At intermittent times, we will have a single device start to "hide" behind a 1242 bridge.In the past, my team would reload or reboot the bridge, and everything would come back up.But the 90 seconds of lost data were causing problems.
I found the the WB was always available.So I would ping the hidden device from the WB, and it would ping.Next, I showed the ARP table, and got the MAC address of the hidden device.Then, I would start a ping from my PC, and leave it running. Constant "Destination Unreachables" from the router.Next, I showed the bridging table for F0, and sometimes the device would be there, sometimes not. I would add a forwarding bridging entry manualy, and exit conf.
Showing the briding table would show the device, with a "P"ermanent age, but still no pinging.Finally, I would remove the forwarding briding entry, and pings would start within a couple of seconds.During these periods, outbound UDP packets will continue to be forwarded from the PC.So, my managers want to convert everything to UDP, which is a potential disaster in my opinion. [code]
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May 31, 2013
However, I now have a number of devices... certain smartphones so far... that will NOT connect to a FlexConnect AP if it's a 1262AGN AP, but my older 1242G AP will accept the devices without issue. Same SSID, same encryption standards.
If I connect the devices to my guest network (no security), they will connect just fine to both APs, and Non-FlexConnect 1242 and 1262 APs will both accept the devices without issue using my private network.
In other words, it seems to be an issue specific to 1262AGN with my encryption security. My security is WPA2/AES with PSK. No additional security on the SSID.
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Feb 27, 2012
I have a set up 50 qty AP1242 (AIR-LAP1242AG-E-K9) installed with a single (1 qty) ANT1728 Antenna..I am not happy with the coverage..Is it possible that I can add another 1 qty of ANT1728 antenna to the exiting AP1242 to imporve the coverage?
AP1242 had dual RPC-TN connected. But I am not completely sure that wether 2 qty of antenna (ANT1728) can be connected to a single Access point (AP1242). I am also concern regarding the power requirement.
I would like to upgrade my existing Wlan to the following configration -AP1242 connected with dual antenna (AIR-ANT1728 x 2 qty) to improve the coverage.
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May 1, 2012
For the establishment of a WiFi Hot Spot with 5 Cisco 1242AG and 5 antenna AIR-ANT1728, I want to know what the config is the most suitable.
- One antenna in root mode and the other 4 in repeater mode
- Or 5 antennas in root mode
Between each terminal distance is about 100 meters outside?
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May 30, 2012
I have a high school wireless environment that was installed approximately 5 years ago with 1242AG APs. The install was done based on 2.4GHz coverage everywhere, not for 5GHz or for good density. The high school uses wireless cisco 7921G phones for all the staff and teachers. The issue we're running into is over the last couple years more and more students are bringing in iPhones and android phones that can connect to the public wireless ssid. And with the increase of these wireless devices in the classroom, we've been experiencing more and more call dropped on the wireless phones. I have collected information on number of clients on specific APs that are in the area of most of the dropped calls. At times some of these APs have a total of 40 clients associated to them, over half of which are on the public ssid. I have thought about putting all the phones on to the 5GHz radios, but the implementation of the wireless was only for 2.4GHz coverage, so we have coverage gaps on the 5GHz network. We're thinking about adding more APs but the budget isn't available yet for that, so we're looking at what we can do to make this better for the time being.
Main questions are:
Is there a best practices number of max clients per AP in a wireless voice network?
Are there any other options for preventing dropped calls on the wireless?
I should mention I have already looked over the VoWLAN Troubleshooting Checklist at the link below and made the necessary changes to assure we are following the items on the checklist as close as possible.URL
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Jul 14, 2012
we are using wism 4404 code 4.2 , we are using this old code becuase of 1250 mesh APs, now when a user connect to our network and he is using intel proset software he can see details of our AP, like mac, type and AP ip address 9 which in this case it the controllers ip address) is there a way we can prevent the ap from showing it?...we will be doing an upgrade to 7.0.230 soon. will the upgrade takes care of this problem or there is a way to fix it.
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Oct 2, 2012
I'm currently moving to a 5ghz solution, due to my WGB's de authenticating due to possible interference. However, the area I have to cover is 350ft in length, with centralizing a 1242 with two Cisco Aironet 6-dBi Omnidirectional Antenna (AIR-ANT5160V-R), that leaves around 150 ft each way.
Do you think this is possible? I currently have a 12dbi high gain antenna on 2.4 right now, but I get the following:
Oct 3 18:05:26.359: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 68bc.0cb8.6a09
Oct 3 18:05:26.359: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0000.bcc7.ef05
Oct 3 18:05:26.359: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0000.bc58.c1ae
[code]...
I'm going to assume this is interference causing this, since we are in a factory with lots of noise. When the WGB is directly under the antenna/root bridge, there seems to be very little de authenticating.
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Dec 5, 2012
Can I connect various Aironet 1242 to Wireless controller 2500?
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