AIR-LAP1242 failure after prolonged down time

We have a number of 1242 APs that were powered down and moved factory location, after about 2 weeks when they were powered up again (POE from 3750 switch) on  7 of the APs the Ethernet interface did not come up, on the switch we could see the power granted to them. Is this a known problem with 1241's? these are about 4 years old. Could some component be faulty, capacitors drying out comes to mind. I must admit I have not connected to the console port, location makes that difficult, but could I do something from the console?

7 of the APs the Ethernet interface did not come up, on the switch we could see the power granted to them. Is this a known problem with 1241's?
Let me just say that the build quality of the 1242 is very superior to anything being produced now.  
Can you state what is the exact model of the 3750 switch?  I've got a strange feeling you're experiencing cabling problem.  The best way to test is to plug the AP directly to the switchport. 
If your switch is a 3750G/E/X then there's a chance for you to run a TDR.  

Similar Messages

  • Macbook Air Boot failure after SMC reset. HELP.

    Hi all.
    So, my brand new macbook air may have encountered some water or something, i seriously dont know, but i booted it up this morning and the fan was rather loud, like seriously loud, so i check out activity monitor and the CPU usage was a solid 80% consistently even with no applications running. So i go for an SMC reset, and as i do the reset the charger falls out, literally (useless magnets), anyway i go to turn it on, and all that happens is the LED on the magsafe goes from orange to green then back to orange with no sound, no "tone", no nothing: dead silence.
    Im a little concerned to take it in to an apple store as this alleged encounter with liquid that i was told about by my brother makes me fear that the LCI's will make it out of warranty.
    I mean it was working fine about ten minutes ago and so surely some wierd SMC hitch cant have completely mucked up the whole thing?
    Its the latest model (as in early 2014).
    Thanks in advance
    Billy

    Try a PRAM reset. If that doesnt work, reboot back into that same recovery partition and reinstall the OS, you can use either your old disk or an internet recovery. You will most likely loose your data however so you may want to try and back it up. You can do so through another Mac computer with either an ethernet/firewire cable and an app called "Migration Assistant".
    Here are a couple articles that may help:
    PRAM Reset: http://support.apple.com/kb/HT1379
    Using disc utility:  support.apple.com/kb/HT1782
    OSX Recovery: www.apple.com/osx/recovery/
    Migration Assistant: support.apple.com/kb/HT3322
    Regards,
    Cody

  • Down time for 2LIS_03_BX setup table

    Hello SDN,
    I have data reconcilation issue in my BW server for inventort managenent, for data source 2LIS_03_BX and 2LIS_03_BF. For this I have to refill setup table of 2LIS_03_BX in R3 server. For filling setup table for R3 system I need to ask for down time from cleint
    I NEED TO KNOW HOW DO I CALCULATE REQUIRED DOWN TIME FOR FILLING SETUP TABLE FOR DATA SOURCE 2LIS_03_BX.

    Dear Pravender,
    I understand your statement (" For the complete load, check in how much time you can do initialization? That much down time only you need, later you can fill setup tables for history data and load.") as to follow following steps:
    1. In the down time, start initialization without data transfer info package in BIW for 2LIS_03_BF and 2LIS_03_UM.
    2. Then during up time (after releasing down time, transactional data posting allowed in R3), fill setup table for 2LIS_03_BX.
    3. Run full upload info package for 2LIS_03_BX
    4. Start Delta info package for data sources 2LIS_03_BF and 2LIS_03_UM
    Let me know if I am right for the above procedures. These steps will allow us take very less down time.
    Thanks for the reply
    Regards,
    Jaydeep
    Edited by: Jaydeepsinh Rathore on Sep 4, 2009 8:23 AM

  • Unable to bootup after Yosemite install. have to keep shutting down from rear button. it does come on after a few times but then hangs at user login again. If you get in it is great. Seems faster than Mavericks but there is some sort of issue, bouts

    unable to bootup after Yosemite install. have to keep shutting down from rear button. it does come on after a few times but then hangs at user login again. If you get in it is great. Seems faster than Mavericks but there is some sort of issue, bootup /login.

    Knock on wood, this seems to have been my problem as well.  I stumbled on this thread after dealing with this ridiculously-long boot times for the past several weeks.
    I just reinstalled McAfee Antivirus and my Macbook Air booted up in less than 1 minute.  No more hanging on the boot-up progress bar.  No more hanging after I click on my user's avatar on the log-in screen.  Bootup would often take 5+ minutes and sometimes never complete.
    This has been SUPREMELY frustrating.
    THANK YOU SO MUCH FOR POSTING YOUR RESPONSE!!!

  • HT4356 After shutting down my router and PC,  I can get my iPad to wirelessly connect to my HP 3050A printer.  After a period of time the connection is lost and I have to start all over shutting things down.  The PCM never looses connection with the print

    After shutting down the router and connected PC, I can get my iPad to connect to air print to my HP 3050A printer.  Connection is lost after time and I have to start the whole process over again.  Any ideas?  Thanks.

    Thanks for the response Grant.  I had both set to "never" and the power connected.  I did however find while searching the forum page, an answer already given to another enquiry.  The security/general tab.  I had it checked, now unchecked am hoping it will solve my problem.  Thanks again, Cebustu.

  • Since I installed Mountain Lion, my iMac has shut down after 15-20 minutes. I have adjusted screen saver, shut down time, and sleep after. Nothing seems to help, any ideas?

    Since I installed Mountain Lion, my iMac has shut down after 15-20 minutes. I have adjusted screen saver, shut down time, and sleep after. Nothing seems to help, any ideas?

    As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
    You are now in a perfect position to do a
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    It is the 5 second timing that initiates the reset.
    Here is a link to a Widget to monitor your temps and other operations:
    http://islayer.com/apps/istatpro/

  • My iPad won't charge after plugging into my computer and after holding down the power and home button at same time for 10 seconds- Can anybody help? Has IOS7.0 but the most up-to-date version

    My iPad won't charge after plugging into my computer and after holding down the power and home button at same time for 10 seconds… Can anybody help? Has IOS7.0 but not the most up-to-date version

    It's just the battery sign - nothing else. I've tried to reboot by holding down both power and home key for 10+ seconds, waiting for the apple logo - but nothing happens. It's plugged into the imac at the moment. I tried to recharge it overnight using the normal charger - but no luck. It went dead during a Skype call with a friend - even though it was powered into the mains - albeit at a low battery level at the time

  • Hello, my mac book air won't update. Every time i try it goes onto the purple starry screen and stays that way for hours, so i just have to shut it down. I have deleted a lot on my laptop so there is enough space, please help?

    Hello, my mac book air won't update. Every time i try it goes onto the purple starry screen and stays that way for hours, so i just have to shut it down. I have deleted a lot on my laptop so there is enough space, please help?

    I believe that system has a hall sensor on it to detect when the lid is closed so it can put the system to sleep and/or disable the monitor so it can be used with an external monitor only. If the sensor is marginal or has a bad cable, it may intermittently cut the monitor on and off, and may likewise put the system to sleep. One way to check would be to plug in an external monitor and if the laptop's screen cuts off or doesn't show up, start using the trackpad and press on a non-typing key like the shift key. If the external display suddenly pops and becomes active while the laptop display remains black, it's probably a problem with the sensor or the cable/connection. You might be able to fool the sensor into kicking on and off by moving a magnet over it. It's located on the left had side of the base with the unit opened up, and right over the audio output plug.
    I know of some people that put a small magnet right over the hall sensor's location so the laptop display turns off and they use the system with an external monitor, keyboard, and mouse. If fooling with magnets, make sure they're small and don't get them close to the hard drive because a strong magnet can wipe them out.
    I don't know if this will help you much, but it might.

  • HT1365 Hi I have Imac 5 processor and I guess installed Lion I am having difficulty with Wifi connection. Sometimes after shut down number of times still does not access wifi or if it does I can see wifi bar on iMac but can't open any webpage. Please help

    Hi everybody,
    I have Imac 5 processor and I guess installed Lion I am having difficulty with Wifi connection. Sometimes after shut down number of times still does not access wifi or if it does I can see wifi bar on iMac but can't open any webpage. Please help
    Thanks

    Hello:
    There was an OS X 10.7 update released a month or so ago that fixed this problem.  Run software update.
    Barry

  • I have iPad air, screen freezes after FaceTime call and cannot get back to home screen, have to power down and turn back on to get back to home screen.  What am I doing wrong?

    I have iPad air, screen freezes after FaceTime call and cannot get back to home screen, have to power down and turn back on to get back to home screen.  What am I doing wrong?

    Hi RWD2,
    Welcome to the Support Communities!
    To resolve your issue with Facetime freezing when you end a call, I would try the first three steps in the article below. 
    iOS: Not responding or does not turn on
    http://support.apple.com/kb/ts3281
    Resolution
    If a single application is not responding or stops responding when it opens, you can force it to close.
    If the device is unresponsive or if certain controls aren't working as expected, restart your device.
    If the device remains unresponsive or does not turn on (or power on), reset your device.
    If you are using Wi-Fi, it may be helpful to try these troubleshooting steps as well:
    iOS: Troubleshooting Wi-Fi networks and connections
    http://support.apple.com/kb/TS1398?viewlocale=en_US
    Reset network settings by tapping Settings > General > Reset > Reset Network Settings.
    Note: This will reset all network settings including previously connected Wi-Fi networks and passwords
    iOS and OS X: Recommended settings for Wi-Fi routers and access points
    http://support.apple.com/kb/HT4199
    I hope this information helps ....
    Have a great day!
    - Judy

  • How to stop Mac Pro from shutting down after a short time of just listening to music?

    My computer will sleep when ever I just let it play music from iTunes after a short time. I've changed the energy saver in system preverances.

    install the caffeine app from the app store,  It is fantastic and best of all, free!

  • Start up time (after shut down) on os x yosemite is too long.

    it takes too long to boot up after shut down on os x yosemite.
    It nearly takes up a minute.
    On OS X Mavericks it took just 12 seconds!
    how do i fix this?

    If you have a Recovery HD partition you can try booting it:
    Boot Using OPTION key:
    Restart the computer.
    Immediately after the chime press and hold down the "OPTION" key.
    Release the key when the boot manager appears.
    Select the desired disk icon from which you want to boot.
    Click on the arrow button below the icon.
    If this is not an available option, then download Carbon Copy Cloner 3.5.1 which will clone the disk even though it's the startup volume.

  • Confirmation and down time

    Hi,
    My client wants to capture down time of machines. For example, suppose one production order says to manufacture 10 quantities of a product. it has 4 operations. operator1 confirms first operation. In co11n he confirms 10 quantities. while doing this operation there was power failure for 10 minutes ( for example).
    Q1. My question is where and how does he mention that he has worked for 25 minutes in total for that operation1 and in that, 10 minutes was wasted due to power failure!
    Q2. After finishing operation1 , he starts with next operation. But before he could start machine broke down for 5 minutes. he repaired himself and started his work. Now where will he mention that before he could start his operation 2 machine was not working for 5 minutes?
    Guys hope I have been able to explain my query. Please think over it and give me a solution. Please do not say PM module is required( we dont have PM module here).
    Please tell what all I need to put inputs in CO11n screen to address this requirement. Is there any other screen where I can put data?
    Regards,
    Mohammad Arif.
    Edited by: Mohammad  Arif on Aug 29, 2008 12:50 PM

    Hi,
    Thanks to all for your inputs.
    Referring to my scenario which I mentioned previously, in CO11N, set up , machine and labor time will be come up if i press 'actual data'. Now I will change it to actual set up, machine and labor time. Till here it is ok..
    Now under Dates tab:Operator will put execution start date and execution finish date. Till here its ok. Now suppose for operation 0010 , operator has taken 10 minutes to job and downtime was 20 minutes, so will he mention start time as for example 09:00:00 and end time as 09:30:00?? ( this will include 10 minutes of his actual work and 20 minutes of machine down time).And then in Breaktime he will mention 20 minutes and long text he will say machine break time due to so and so reason?
    Now next scenario, before operator starts his second operation there was breakdown for 15 minutes minutes. he repaired it and started his 0020 operation.he took 25 minutes. In this case, in confirmation screen of opeartion 0020, he will put start time say, 09:45:00 and end time  10:05:00. he will put Break time 15 minutes and reason in long text.
    Please let me know if I am going correctly? Moreover at any stage does he has to go and select Reason for variance?
    My basic doubt is how to put timings and in second scenario wherein machine breakdown was before start of second operation , will it be captured in first operation or second operation and the way I have explained above is correct or not?
    Now when I have put actual set up, machine and labor time , why the need to again go in execution start and finish date and time entry?
    Please reply.
    Regards,
    Mohammad Arif.

  • Slower shut down time

    hi! I have a macbook air and a macbook pro.. I've updated to Mountain lion (before i had snow leopard), and after I installed the software everything works awsome but the shut down time became slower on both.. 16'' , does anyone know why? thnks!

    Agus Costante wrote:
    16 sec ... before it was 5 sec ..
    Mine shuts down anywhere between 1 seconds to about 10 seconds in ML. Depending on what I have been doing. You have to remember ML has to closeout many more background processes that are run compared to the SL and Lion.

  • Failure code 28 several times. What can I do ?

    My I-touch felt down (1m high), no damage visable but it did not start. I tried to re-install. After starting this process I got the failur code 28 several times. What can I do ?

    Error 23, 28, 29: These errors may indicate a hardware issue with your device. Follow the steps in this article. Also attempt to restore while connected with the white USB Dock Connector cable that shipped with your device, on a known good computer and network to isolate this issue to the device. The MAC address being missing or the IMEI being the default value, (00 499901 064000 0), can also confirm a hardware issue. Out-of-date or incorrectly configured security software can also cause these errors.
    Above from:
    iTunes: Specific update-and-restore error messages and advanced troubleshooting

Maybe you are looking for

  • ODS ACTIVATION ERROR IN BI 7.0

    Hi, Iam Facing the problem in activation of ODS.... When i loaded the data in ODS manually..The data was succesful and activation also ran well... But when see the same in the processs chain ....Activation of ods is in red... I repeated it...but stil

  • Regarding RRI reports

    Hi all, can any one plz tell me, in any RRI report where can we find the receiver report name??

  • Losing sound in headphone j

    Hiya, My Zen Micro is just over yo and not used constantly. I thought my problem was with the headphones so I bought a new pair. When I stick the player into my pockets, the sound goes into just earphone; the pressure on the headphone jack whilst I w

  • How to shoot fixed focal length lenses?

    Hi, I wonder how I am supposed to best shoot fixed focal length lenses. Currently I just shoot one set of 9 images, just because it is a fixed focal length lens and if I want it to be good, I shoot the same set again with different apertures. But the

  • Need help with whitelisting escalation to agent.

    The "ISP"  form keeps rejecting this server "arbis.com" which is a NEW server so it doesn't make sense that it's been noted as a spam source unless it's a previous owner of the IP address. But the reply form says it's a dynamic address which is just