7925g - roaming issue using a band only

We have a small deployment of 7921g and 7925g phones. The 7925g phones while stationary when set to use the a band roam (while idle or in call) to distant APs with much weaker signal strength. That of course impacts negatively the quality of the call. The 7921 phones do not exhibit this behavior.
Additional data:
Access points and coverage:
Meraki MR14 & MR24 set to select their own channels (channel spreading) and auto reduce power according to the RF environment to avoid co-channel interference. Currently the APs transmit on channels 1, 6, 11 and 36, 44, 149 and 157.
Coverage has sufficient overlap for seamless roaming but it is really irrelevant in this case since the 7925 phones roam while stationary.
Phone firmware:
Initially 1.4.2 now the 7925s run 1.4.2ES.1
The phones have been configured to continuously update the AP list (CUCM setting) and channels on which the APs do not transmit have been excluded (through the web interface of the phones)
SR 618866317

Since you are seeing unexpected roaming and you believe that  is the reason for the choppy audio, we need to gather phone logs as well  as correlated WLAN sniffer traces.
The phone should have Kernel, WLAN Driver, WLAN manager set to DEBUG level.
You can increae the # of files and file size to 10 /250 kb or enable syslog via USB.
Be  aware that with this increased logging, audio quality can be impacted,  but since we are troubleshooting unexpected roaming it should be ok.
Just want to be sure you don't enable this debug level on many phones / production user phones, where we make things worse.
Once you get the logs, attach them to the case by replying to your SR thread with [email protected] copied.
For the comment about 7921 and 7925 RSSI, they are different chipsets (although same vendor) and different antenna type.
So will not be 1 to 1 exactly.
Will need to ensure that the 7925 downstream RSSI is -67 dBm or better as well as the upstream signal (from 7925 to the AP).
But since the issues don't seem signal related, let's not focus here, but instead focus on the unexpected roams.
So yes we need all 3 modules enabled at DEBUG level as mentioned above.
Get that info and attach it to the SR and let your assigned TAC engineer know.
I already reached out to the TAC engineer assigned to your case.

Similar Messages

  • I am turned off completely with GarageBand..I did delete it and re installed but now it's claiming not enough memory, which I guess is a push for me to install more memory. I will do it but I will use garage band as my sou d board only while recordinelse'

    II am turned off completely with GarageBand..I did delete it and re installed but now it's claiming not enough memory, which I guess is a push for me to install more memory. I will do it but I will use garage band only  as my sound board only while recording on something else and the. I will delete it.. Real P I A....

    How do I upgrade the ram?
    The 2 places I’ve seen recommended most to buy reliable RAM are below. I have purchased RAM several times from Other World Computing and have always been very satisfied with the product and service. They have on-line instructions on how to replace the RAM. OWC has also tested RAM above what Apple states is the maximum. I now have 6GB installed on a machine supposedly limited to 4 GB.
    Crucial
    Other World Computing
    Do a backup, preferably 2 separate ones on 2 separate drives.
    Revert to a Previous OS X - Yosemite
    Revert to Snow Leopard
    If you do revert, I'd use Setup Assistant to restore your data. This process takes a while, so do it when you won't need the computer for several hours, based on my experience.

  • Banding issues using Rgrad

    Hey all I'm having banding issues using rgrad, I changed it to 16 bit and float but the banding is still there and noticable, surely thre's a way to create a gradient fall off map without banding, and if so how?
    Rgs,
    -Nic

    Yes, or even 6 bits, 90% (or more) of the LCD screens on the market are TN (twisted nematic) based, which is a 6 bit -only- technology. They "simulate" an 8 bit display by dithering.
    (Apple's pro monitors are all 8 bit LCD's, as are a handful of professional level LCD screens)

  • Itunes and all my movies have disappeared,i can no longer add to library from my external hdd which ive always used and can only add from the laptops own hard drive,any ideas what the issue could be?

    ive recently updated, itunes and all my movies have disappeared,i can no longer add to library from my external hdd which ive always used and can only add from the laptops own hard drive,any ideas what the issue could be?if i transfer the movies from the external to the laptop they will add to the library without any problem so theres no issue with the laptop but when i go to add file in itunes i can path to the external but as soon as i select the file nothing happens, just goes back to itunes

    This happens if the file is no longer where iTunes expects to find it. Possible causes are that you or some third party tool has moved, renamed or deleted the file, or that the drive it lives on has had a change of drive letter. It is also possible that iTunes has changed from expecting the files to be in the pre-iTunes 9 layout to post-iTunes 9 layout,or vice-versa, and so is looking in slightly the wrong place.
    Select a track with an exclamation mark, use Ctrl-I to get info, then cancel when asked to try to locate the track. Look on the summary tab for the location that iTunes thinks the file should be. Now take a look around your hard drive(s). Hopefully you can locate the track in question. If a section of your library has simply been moved, or a drive letter has changed, it should be possible to reverse the actions.
    Alternatively, as long as you can find a location holding the missing files, then you should be able to use my FindTracks script to reconnect them to iTunes .
    tt2

  • Is there any other ways to check whether is my phone faulty or my sim card issue. I can only use it for call, my network to 3G or 4G suddenly cannot use.

    Is there any other ways to check whether is my phone faulty or my sim card issue. I can only use it for call, my network to 3G or 4G suddenly cannot use. This happen since yesterday, suddenly can use but suddenly cut off. Called Telco and they reset account but still same.

    See this
    http://support.apple.com/kb/TS4148

  • Ive got an issue, i cant download a think because it says my disc space is all used.. ive only just bought this macbook.. i go to disc utility and there is macintosh HD at the top, it says i have no spece under that there is another saying ive usedon 39mb

    ive got an issue, i cant download anything because it says my disc space is all used.. ive only just bought this macbook.. i go to disc utility and there is macintosh HD at the top, it says i have no spece, there is another available macintosh HD that i can click on and that tell me i have only used 39GB out of the 500. to make this abit more confusing, the one that tells me i have no space says its type says its a logical volume group, the other with space tells me the .

    You've encrypted the boot volume with FileVault, so the reading in your first screenshot is normal. The reading in your last screenshot shows that you have plenty of disk space.
    A false "disk full" warning can result from moving a Safari download between folder while it's in progress. Is that what you did?

  • Client roaming issue

    I am trying to track down some performance issues on my wireless network, and hope someone out there will help educate me!  My environment:
    Access Points are all 1231, 1242, and 1252
    The 802.11g radios are active
    All APs are configured to use Channel 4
    WEP security (I know, I know ...)
    Clients are either laptop users (mostly Dells) or Intermec vehicle-mounted terminals with Prism NICs
    Clients are VERY active as far as moving around the building
    Here is what I *think* is happening:
    The clients don't "roam" as quickly as I think they should - in other words, they remain associated to the active AP too long.  Their signal gets too low before they pick up another AP.
    I wonder if I need to adjust the data rates on the APs (like maybe disable the lowest ones).  For example, if I disable the 1.0, 2, and 5.5 Mb/sec rates, does that mean that a client will look for another AP when the "speed" drops below 6 Mb/sec?  If so, then by disabling the lowest data rates, the client would be forced to find another AP before the data rates drops to nothing, right?
    I also don't understand the power ratings - I've just left them at the default settings - does this affect performance as well?
    Thanks in advance ...

    Hi Susan,
    How are you doing today ... Sounds like you have a little mess on your hands. Lets sort through some of these issues. It also sounds like you are open to feedback, that is always great to hear!
    First. I need to point out your channel selection and this could be a the likly cause for your roaming issue. Follow along and let me explain why.. There is a BIG miss understanding when doing wifi that folks think that all the AP needs to be on the same channel. In fact, you should only use channels 1,6 and 11. When you use the same channel off channels like 4 you cause interference.
    Let me explain why with a real world example. Think back to the late 80s when cordless phones were hitting the market. Do you remember when you would pick up the phone and you would hear your neighbor's conversation? Well that is becuase you were on the same channel you shared the same freq. Now what happens when 4 people (on 2 calls) try to all talk at the same time!? It becomes a mess, right. "Can you say that again", "I didnt hear you", "What was that !?".
    Well the same holds true with WiFi. If all the aps are on the same channel you have one big cordless phone call going, for exmaple.So the first thing we need to do is correct the channel issue before you do anything else. It WiFi channel uses 22 MHz of RF. Thus what you can only use 1,6,11. You also want to make sure you dont put like channels close together. For example, don't line up a hallway with all channel 1... here is some reading
    http://www.cisco.com/en/US/docs/wireless/technology/channel/deployment/guide/Channel.html

  • I can no longer access or use my mail only through iCloud.  I have made no changes to cause this., I can no longer access or use my mail only through iCloud.  I have made no changes to cause this.

    I can no longer use my mail, only can access through icloud. I have made no changes or updates to create this problem.  TWC did take over my internet provider and suddenly I started have a myriad of issues.  I am in the process of changing providers to ATT because TWC does not support Safari.

    How does TWC not support Safari? (They're lying)
    You're using Apple Mail right?
    What happens when you launch mail?
    Please provide all errors you see.

  • L2 Roaming issue with Avaya wireless phone on WISM -V6.0.196.0

    Hello Friends,
    I am facing Layer2 roaming issue with Avaya Wirless phone 3620 which are configured WPA / Pre-shared key auth with a SSID1 and face a cut or delay in the voice.
    But when i use Cisco Wireless phones and try to roam between one LWAP to other i dont face a cut or delay in the vocie which are
    Configured with 802.1x +CCKM auth .
    Then i configured new SSID 3 with 802.1x+CCKM settings for  the new Avaya wireless module 3631 , but still face cut and delay while doing Layer 2 roaming.
    While i was using these AP in WDS mode i never faced this Layer 2 roaming issue with Avaya wireless phones.
    In  current WISM all the LWAPs are supporting properly to the Cisco phone and Wirelss laptop clients.
    I request you to please let me know how do i proceed further to solve the issue and please let me know if anybugs or incompatibilty for WISM with Avaya wireless phones.
    Appreciate your response.
    Regards,
    KA.

    Hello ,
    Can any body please respond to my above Query.
    Thanks,
    KA.

  • Please please can some one tell me how do you charge ur ipad with ur laptop. it doesn't chage wen I put use the wire. only charges when I plug the socket in.

    please please can some one tell me how do you charge ur ipad with ur laptop. it doesn't chage wen I put use the wire. only charges when I plug the socket in. Iv never used an ipad b4 so don't really know much. Hope some one knowz.

    The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
    Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
    How to Calibrate Your Mac, iPhone, or iPad Battery
    http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
    At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
    Also, if you have a 3rd generation iPad, look at
    Apple: iPad Battery Nothing to Get Charged Up About
    http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
    Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
    http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
    New iPad Takes Much Longer to Charge Than iPad 2
    http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
    Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
    Extend iPad Battery Life (Look at pjl123 comment)
    https://discussions.apple.com/thread/3921324?tstart=30
    New iPad Slow to Recharge, Barely Charges During Use
    http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
    Tips About Charging for New iPad 3
    http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
    How to Save and Prolong the battery life of your new ipad
    https://discussions.apple.com/thread/4480944?tstart=0
    Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
    http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
    iPhone, iPod, Using the iPad Charger
    http://support.apple.com/kb/HT4327
    Install and use Battery Doctor HD
    http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
    To Extend a Device’s Battery Life, Get to Know It Better
    http://tinyurl.com/b67c7xz
    iPad Battery Replacement
    http://www.apple.com/batteries/replacements.html
    In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
     Cheers, Tom

  • I've been using my cell phone number to imessage from my ipad for a while now, but yesterday I got signed out of I message and when I signed back in, I didn't get the option to use my number, only my email adress. How can I fix that?

    I've been using my cell phone number to imessage from my ipad for a while now, but yesterday I got signed out of I message and when I signed back in, I didn't get the option to use my number, only my email adress. How can I fix that?

    Hey bill.rizzo2,
    Thanks for the question. I understand your phone number is missing on your iPad as an option for iMessage. The following article provides steps to resolve this issue:
    iOS and OS X: Link your phone number and Apple ID for use with FaceTime and iMessage
    http://support.apple.com/kb/HT5538
    Phone number missing on iPad or iPod touch
    If your phone number isn't listed on an iPod touch or iPad, follow these steps:
    1. Update to the latest version of iOS.
    2. Verify that you're using the same Apple ID that you're using on your iPhone.
    3. On your iPad or iPod touch, sign out of your Apple ID in the following locations:
        - Settings > Messages > Send & Receive. Tap your Apple ID, then tap Sign Out.
        - Settings > FaceTime. Tap your Apple ID, then tap Sign Out.
    4. Sign in to your Apple ID with FaceTime and iMessage.
    If your phone number still isn't listed, follow these steps:
    1. Sign out of your Apple ID on all iOS devices, including your iPhone, in the following locations:
        - Settings > Messages > Send & Receive. Tap your Apple ID, then tap Sign Out.
        - Settings > FaceTime. Tap your Apple ID, then tap Sign Out.
    2. Sign in to your Apple ID on your iPhone.
    3. When activation is complete, your Apple ID and all verified email addresses should be visible in Settings > Messages > Receive At and Settings > FaceTime.
    4. Sign in to your Apple ID on your other iOS devices.
    Thanks,
    Matt M.

  • Performance issues using multiple CC design programs?

    Hey! I'm Gwidz, and I'm having some performance issues with my adobe programs. I primarily use Photoshop, InDesign and Illustrator for design work. I find that when I have any two of them open, I experience delays in clicking and dragging using my pen tablet, and laggy zooming in/scrolling. This issue disappears when I only have one program open.
    I just bought this laptop to use these programs. Here's the specs:
    Operating system: Windows 8 64 bit
    Processor: 4th gen intel i7 4700HQ
    Ram: 16gb DDR3
    Graphics: NVIDIA GeForce GTX 770M 3GB GDDR5
    Cost me 2000 bucks on amazon, and I'm pretty disappointed in how things are going right now. I definitely don't think it could be a hardware issue, could it?
    I'm using an SSD as my scratch disc, and using the 64 bit versions of all programs that have it. Nothing else running in the background except these programs, and yet still I experience poor performance.
    Admitedly, I'm new to windows 8, and I'm learning everything that I can about it in hopes of resolving this issue.
    If anyone has any advice, any and all is greatly aprpeciated!

    I'm seeing this exact same choppiness and VERY slow response times with the same low use of CPU and memory... WITH JUST ONE APP OPEN!  Illustrator.
    Macbook Retina Pro, 15 inch.
    I've tried with the GPU forced off, and forced on, and on autoswitching.
    I've tried clean reinstalls.  And reboots. Etc.
    This is not hardware related.  It's something utterly flawed with the way Illustrator (and InDesign) draw do things.  They are just grotesquely inefficient.
    The fact that the program/app makes no effort to use more CPU/GPU to speed up responsiveness to the user input is the real indicator of how poorly optimised this code is. 
    After Effects is better.  But it's adaptive degradation STUTTERS grotesquely, and it's actually better to try to turn that off.  Although I'm having a hard time trying to figure out how to turn that off at the moment.. forgotten where I previously found that switch.
    Photoshop is also better. 
    I'm also talking about small files. Nothing in them.  Just start drawing... Stutters... atrocious frame rates for the update of the screen and very poor response rates to input.
    This is 64 bit optimised?  I don't think so.

  • Preparing Balance sheet by using profit centers only for BS Items

    Dear Experts,
    could you please help me out regarding the following issue.
    business area wise we can get the balance sheet but i want to know is there any possibility to get the BS by using profit centers only for BS Items or can we assign biasness area as well as profit center in a single screen.

    Hi!
    You can use following report :
    S_ALR_87013336 (Report for Balance sheet at Profit Center and Group Level).
    Hope this will help.
    Thanks & Regards,
    Taral Patel

  • My snapchat won`t work if i use wifi, its only working when im useing 3g

    my snapchat won`t work if i use wifi, its only working when im useing 3g

    Since this is an app-related issue, you may get better results solving your problem by contacting the app developer, or searching their help/FAQ pages.

  • Wireless connecion issues using a macbook

    Hi,
    RE: Wireless connecion issues using a macbook
    After doing some google searches, I have come to understand that there is a bug with OSX power management when running on battery which impacts the wireless connection of the macbook, though Apple geniuses are unaware of any such issue. Please see: http://kristopherjohnson.blogspot.com/2006/08/macbook-wireless-connection-drops. html and type in "macbook wireless connection problems" in google for many other discussions on this issue.
    For all those who are having wireless connection issues with a macbook:
    Plug in the macbook to use mains power (not the battery) to verify that you are impacted by the same bug (I even find sometime unable to connect to the router when on battery so have resorted to starting the machine with mains power plugged in). If that is the problem then here is a work around (taken from above blog):
    Open the terminal window and type in the following command: ping -i 5 google.com
    (this will ping the google domain every 5 seconds and maintain the wireless activity thus a connection).
    I am surprised that Apple are not acknowledging this well known and widely reported bug and fixing the issue. In my case, I dont mind plugging the machine into mains most of the time and that has resolved the problem, otherwise I hope the above pinging works for you.
    I discovered the workaround after ditching my old DLink router (though it had done its time) and buying an Airport extreme (£120), a trip to the Apple store (40 miles drive), trying several different people's machine on my network (frustration) and finally google to rescue, more specifically Kristopher Johnson's blog.
    NOTE: My macbook worked fine in the Apple store while on battery power which was frustrating but apparently the problem only arises when connecting to consumer grade networks and not commercial ones, which I dont understand technically.
    HTH
    Regards
    Faisal

    you can use but you will not get full screen on HDMI output.
    Sometimes width or height of the screen was not completely used by ur mac other then that everything would be good.
    You need to buy HDMI Output cable for mac something like this
    http://store.apple.com/us/product/HA825ZM/A/belkin-mini-displayport-to-hdmi-cabl e-2-m65-ft?fnode=51

Maybe you are looking for