Aironet 340 bridge problems

We have two old 340 bridges between two buildings that were working fine for years until last week. Now we intermittently get connection loss or high response time. I suspect inteference.
On the root we have "auto" frequency which I thought would check available frequencies and select a free one. There is no setting on other bridge (presumably because it is non-root) If we choose manual frequency must we set it on both bridges ?
Thanks

Hi Graham,
If you set a manual rate it should be set on both bridges. Have a look;
Frequency
Radio devices are set to automatically find the correct frequency. The device scans the frequency spectrum, either to listen for an unused frequency or to listen for transmitted frames that have the same SSID as the device. If you have not configured the frequency as Automatic, ensure that all the devices in the WLAN infrastructure are configured with the same frequency.
Data rate
If WLAN devices are configured for different data rates (expressed in megabits per second), the devices fail to communicate. Here are some common scenarios:
Bridges are used to communicate between two buildings. If one bridge is set at a data rate of 11 Mbps and the other is set at a data rate of 1 Mbps, communications fail.
If the pair of devices are configured to use the same data rate, other factors probably prevent them from reaching that rate. As a result, communications fail.
If one of a pair of bridges has a data rate of 11 Mbps set, and the other is set to use any rate, then the units communicate at 11 Mbps. However, if there is some impairment in the communication that requires the units to fall back to a lower data rate, the unit set for 11 Mbps fails to fall back, and communications fail.
Cisco recommends that WLAN devices are set to communicate at more than one data rate.
From this 340 doc;
Troubleshooting Problems Affecting Radio Frequency Communication
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00800948cb.shtml
Hope this helps!
Rob

Similar Messages

  • LEAP support in Aironet 340 Bridge

    Hi. Can anyone tell me if a Cisco Aironet 340 Bridge (BR342) acting as an access point will support LEAP. Does the client have to support it? Or does the access point have to support it? Or both? If Windows XP supports it, does a 340 client adapter have to support LEAP?
    Thanks so much.

    Here is the good webpage which discuss step-by-step procedure to configure LEAP on cleint side and also towards AP and ACS..
    http://www.cisco.com/warp/public/cc/pd/witc/ao1200ap/prodlit/wrsec_an.htm

  • Aironet 340 installation problem

    Recently purchased 3 PCI340's for some of my older systems (95, NT4.0) and got nowhere with either OS. There is a field notice concerning the NT problem:
    Field Notice: *Expired* FN - 13193 - Cisco Aironet PCI340 Series: Trouble Installing Windows NT4.0 Driver
    Http://www.cisco.com/en/US/ts/fn/100/fn13193.html
    However, the url doesn't contain or point tohttp://www.cisco.com/en/US/ts/fn/100/fn13193.html the file ( PCINT4v664.exe ) needed for corrective action. I'm hoping someone out there has a copy or can point to it.
    Concerning the '95 installation, after having gone through the installation process, device manager shows that the driver was not loaded. Subsequent attempts yield same result. Any thoughts on that one?
    Appreciate your consideration.

    Hello Scott,
    Thanks for taking the time. I've scoured the Cisco website and can find no evidence of the file. I've even googled it to no avail. I'm amazed that there is no traffic regarding this problem due to the high number of NT's still running. Thanks again for your help. BTW I inadverdantly clicked on the correct answer button while viewing your post.

  • Need help on Aironet 1300 bridges

    Greeting,
    We have just upgraded two Aironet 1300 bridges (from cisco 350) on two buildings about 100 yards apart. They are only running as bridges. One is set up as root bridge and another one is setup as non-root bridge. Root bridge is in the main building direct connect to Cat 4506. For some reason the root bridge has some intermittant problem connect to the network. We are running the IOS 12.3(8). We changed the cable but the problem still occured. Everytime we have to reboot the root bridge in order to get it back. but all the interfaces in the root bridge show " up / up" prior to reload. The "show tech" looks fine on the root bridge. Any suggestion? Shall I change root bridge to workgroup bridge?
    really appreciate for any helps,
    Gene

    Hi Steprodr,
    I just need to clearify that the power injector is on the non-root bridge? I think the power are fine on both bridges when the problem occured. We used cisco 350 bridges before the upgrade. So the cable and port are still remain the same. The problem is more going towards from root bridge come back to Cat 4506 because both root and non root bridges can ping each other when the problem occured.
    thanks,
    Gene

  • Aironet 1310 Bridges keep losing connection

    There was a similar thread about this last year and I tried what was listed in there to no avail.  I have 2 Aironet 1310 bridges, one as a route bridge and the second as a non-route with clients.  These worked great for nearly a year, we had no problems keeping the connection up.  They were not connected for the last few months but nothing was changed on the configuration, when I put them back up they reconnected just fine and worked for about an hour, not they randomly disconnect with the same message in the log entries below.  Is there something wrong with them now?  The are using the same antennas as before and are in the same exact locations.
    logs from root bridge
    Nov 29 13:52:53.311: %DOT11-4-MAXRETRIES: Packet to client XXXX.XXXX.XXXX reached max retries, removing the client
    Nov 29 13:52:53.311: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station XXXX.XXXX.XXXX Reason: Previous authentication no longer valid
    Nov 29 13:52:53.568: %DOT11-6-ASSOC: Interface Dot11Radio0, Station Test XXX.XXXX.XXXX Reassociated KEY_MGMT[WPAv2 PSK]
    Nov 29 13:55:16.260: %DOT11-4-MAXRETRIES: Packet to client XXXX.XXXX.XXXX reached max retries, removing the client
    Nov 29 13:55:16.260: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station XXXX.XXXX.XXXX Reason: Previous authentication no longer valid
    Nov 29 13:55:16.550: %DOT11-4-MAXRETRIES: Packet to client XXXX.XXXX.XXXX reached max retries, removing the client
    Nov 29 13:55:16.550: Client XXXX.XXXX.XXXX failed: reached maximum retries
    logs from non-root
    Nov 29 2010 13:52:55: %DOT11-4-UPLINK_DOWN: Interface Dot11Radio0, parent lost: Received deauthenticate (2) not valid
    Nov 29 2010 13:52:55: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

    I am not at the remote location any more, but the route bridge had a signal of -78 dB and a SNR of -22 dB.  The non-route has -77dB for signal and a SNR of -22 dB.  The location has line of sight, over water with nothing in the way. 
    Since I last posted I changed the fragmentation and RTS thresholds back to default from 4000 and it has been up for 24 hours now.  I am hoping that it has made the difference.

  • Configuration of a Point to MultiPoint link with Cisco Aironet 1310 bridges

    Hi All,
    The previous problem of which I started another conversation here:
    http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Wireless%20-%20Mobility&topic=General&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddba023
    somehow dissapeared. It could have been a problem of interferences.
    I have another issue with other (multipoint) wireless WAN link, which I hope has a solution.
    On the central node, we have an Cisco Aironet 1310 bridge configured as root-bridge. It has a panel of four vertical polarity 17 dBi panel 90? antennas, with more than enough gain (there is a 250 mWatts 802.11 b/g amplifier, before the 4-way splitter) and excellent line of sight to three remote bridges.
    The three (03) remote bridges are also Aironet 1310 models, confidured as non-root-bridges.
    The problem we have is that it seems that when the three remote links operate concurrently the amount of lost packets is huge. When I shutdown the radio interfaces of two bridges, the remaining bridge makes an excellent link with the central node.
    It seems that some hours are more critical than others, also the links operate much worse when there is some (small) network traffic in them.
    I have read the 1310 manuals, and I can't find a sample configuration for point to multi-point links.
    Does someone knows what radio interface configuration should I need to use to establish better quality communication?
    I mean, perhaps the 1 x root - 3 x no root configuration is not recommendable for the multipoint link configuration.
    Any hints will be welcome.
    Best Regards,
    Igor Sotelo.

    Hi All,
    Thank you for the information. I configured the distance on the root bridges, but the links showed instability.
    I'm using a bi-directional amplifier. It has two pieces. According to the manuals, one is installed indoors, the other outdoors. I'm not sure if the indoors piece has the transmition module or it's only the injector.
    We could establish connection at 7 km (around 4 milles) distance from the central point, using 24 dBi antennas on the other side.
    However, we have issues with a near located point that is only 1.2 Km (around 0.8 milles) away and has a 13 dBi integrated patch antenna. The signal strenght value we get there is in the -62 to -68 dBm range, and is noticiably (5-10 dBm) lower than the strenght we get at other points of the link. And I have trouble establishing a high quality link with that point, using OFDM modulation. I tend to think that if I remove the amplifier I'm not going to reach that point at all. The EIRP on the central iste is 34 dBm / 2.5 watts, without amplifier it would be 26 dBm / 0.4 watts.
    On the opposite sites the EIRP is 33 dBm / 2 watts using CCK or 28 dBm / 0.63 watts using OFDM.
    When one looks at the central site from that point, an Motorola Canopy with passive reflector (EIRP 48 dBm or around 64 watts) can be seen. It doesn't have the same direction, but the opposite site must be large distance and could interfere with my wireless network. Attached is an amplified photo of the view. It's safe to assume that the Canopy operates in the 2.4 GHz frequency range.
    Once I connect the point at 1.2 Km, the multipoint link loses its quality, and soon the lost packets get too frequent.
    The CCK seems to be much more interfered than OFDM, I guess because of that canopies.
    Another thing I'm wondering about is if the Aironet 1310 can continuosly switch CCK-OFDM over the same point - multipoint link, without losing packets.
    What other parameters should I tweak? Is there a way to avoid interferences fromt the canopy?
    I would like to apply 100 mWatts local power using the radio with OFDM, but it seems that's not possible.
    Best Regards,
    Igor Sotelo.

  • Aironet 1310 bridge does not reestablish connection

    We have an aironet 1310 bridge installed (root/non root) where the non root drops sometimes the signal when the morning sun is in direct line with the link. This blackout problem is known. What bothers me is the fact that the bridge does not automatically reestablish the association...
    Once it has been lost we have to restart the Air 1310, then it re-associates. Is there a workaround or an automatism?
    Thank you for your suggestions.
    Bert

    This should be automatic. I had a client have this problem once, and we found that the problem was actually with the 1310 being configured in diversity mode. The 1310 would disconnect in tough weather conditions and try to connect to the little metal stub that comes on the bridge. The signal was too weak to establish a good connection, but for some reason it would not switch back.
    So check to see if you have diversity mode enable, and disable it if it is. If that's not the problem, I'm not sure what it could be. Have you tried upgrading the IOS?

  • When i open pc an adobe bridge problem denotes purging

    when i open computer an adobe bridge problem denotes purging

    Are you trying to say that pointing to your computer in Bridge you get an error message telling you that you need to purge the central Cache?
    If so, go ahead and purge it.
    Your post is not clear at all.  Try rephrasing it, please.
    Also:
    A lot more information about your hardware and software is needed.
    BOILERPLATE TEXT:
    If you give complete and detailed information about your setup and the issue at hand,
    such as your platform (Mac or Win),
    exact versions of your OS, of Photoshop (not just "CC", but something like CC2014.v.2.2) and of Bridge,
    your settings in Photoshop > Preference > Performance
    the type of file you were working on,
    machine specs, such as total installed RAM, scratch file HDs, total available HD space, video card specs, including total VRAM installed,
    what troubleshooting steps you have taken so far,
    what error message(s) you receive,
    if having issues opening raw files also the exact camera make and model that generated them,
    if you're having printing issues, indicate the exact make and model of your printer, paper size, image dimensions in pixels (so many pixels wide by so many pixels high). if going through a RIP, specify that too.
    a screen shot of your settings or of the image could be very helpful too,
    etc.,
    someone may be able to help you (not necessarily this poster, who is not a Windows user).
    Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
    http://forums.adobe.com/thread/419981?tstart=0
    Thanks!

  • CS6 Bridge and Mini Bridge problems

    Installed CS6 and clicked on Brose in Bridge.  I get the rror messare could not complete the Brose in Bridge commmand because Photoshop was unable to find the Java Script plugin.  Also when clicking on Brose in Mini Bridge I get the message cannot complete the command because the extension could not be loaded  I have uninstalled CS6 and reinstalled it and get the samew message  Help please

    Thank you very much  I will try that
    In a message dated 11/24/2014 12:41:45 P.M. Central Standard Time, 
    [email protected] writes:
    CS6  Bridge and Mini Bridge problems
    created by Flashy1995_ (https://forums.adobe.com/people/Flashy_1995)  in 
    Photoshop General Discussion - View the full  discussion
    (https://forums.adobe.com/message/6958475#6958475)

  • Security on Aironet 1300 bridges

    I am a newbie on this fourm. I required your suggestions and recommendations. I have aironet 1300 bridges. I want to connect them in point to multipoint envt.
    I want to have one root bridge and rest as non root bridges. But i want to implement authentication of non-root bridges through root bridge. Please suggest what is the latest and strongest authentication and security protocols that i can use. Please i am looking for an early response.

    EAP Authentication type provides the highest level of security for your wireless network. By using the Extensible Authentication Protocol (EAP) to interact with an EAP-compatible RADIUS server, the root access point/bridge helps another access point/bridge and the RADIUS server to perform mutual authentication and derive a dynamic unicast WEP key. The RADIUS server sends the WEP key to the root access point/bridge, which uses it for all unicast data signals that it sends to or receives from the non-root access point/bridge. The root access point/bridge also encrypts its broadcast WEP key (entered in the access point/bridge's WEP key slot 1) with the non-root access point/bridge's unicast key and sends it to the non-root access point/bridge.

  • Aironet 350 Bridge associations

    Hi,
    I have 2 aironet 350 bridges that keep disassociating and then reassociating constantly. Is there any way to stop this form happening?

    Parent is "Root Bridge", end station is "Non-root bridge w/out clients." Thanks for pointing me to the Express setup page--that's the one I had in mind, but I haven't been there since day one. Now I need to figure out why, with those settings, it's allowing client connections...
    The only MAC address filtering I see is (per documentation) "allow or disallow the forwarding of unicast or multicast packets either sent from or addressed to specific MAC addresses." When I look at the actual Address Filters page, it only allows me to specify "Dest Address." Not much help if I don't want to allow other connections *to* the bridge...
    When I'm not in Express Setup, and go to the Setup page, I have the option at the bottom of the page (Network Ports | Bridge Radio or Network Ports | Root Radio) to go to an Advanced page. While there, I see a field called "Radio Cell role." The Root Radio Advanced page shows the Radio Cell role as "Access Point / Root." The other options would be "Client/Non-root" and "Repeater/non-root." The Bridge Radio Advanced page shows the role as "client/non-root." I am *assuming* that the Root radio here, although called an "access point" is not an access point for clients (i.e., its role is that of the access point for the far end(s) of the bridge).
    I can't find anyplace to stop broadcasting the SSID...
    Thanks for the help!
    t

  • Mac software for Cisco Aironet 340

    I have a Cisco Aironet 340 PCMCIA card that I want to use with an old PowerBook. But I can't find the download for the Mac software for this card. This page tells me to go to "http://www.cisco.com/pcgi-bin/tablebuild.pl/aironet-utils-mac." but it just redirects me to the normal software download page. Where can I download the Mac sofrware for this card?

    It was never supported on a mac and this is end of life and end of support... your not going to find one especially on Cisco's site.  Maybe search online and someone might have it on a file share.
    Thanks,
    Scott
    Help out other by using the rating system and marking answered questions as "Answered"

  • Answers to common Bridge problems.

    Here are user-submitted answers to common Bridge problems.
    I invite all suggestions to addition/corrections/improvements.

    Bumped. I'll convert to document once it will be possible to do so. I have great addendum by CurtY:
    Windows and Mac FAQ and Translation Key
    Keystrokes
    ALT on a Pc = Option on a Mac (On some keyboards (UK), the Option key is labeled with Alt. )
    CTRL (Control) on Pc = Cmd (Command) on a Mac, the key has the following symbol: ⌘
    Right-click on a Pc = Right-click on a Mac, or Control+Click on machines without a mouse.
    Menu differences
    Preferences (CMD+K) are found on the Photoshop menu on a Mac, at the bottom of the Edit menu on a PC, and the shortcut is (CTRL+K).
    On the same Photoshop menu on a Mac, one can find About Plug-ins... and About Photoshop, while they are located on the Help menu on a PC.
    Quit Photoshop (CMD+Q) is also on that Photoshop menu on a Mac, while Exit (CTRL+Q) can be found at the end of the File menu on a PC.
    Preferences location on the hard drive. There is a full document on that topic: http://kb2.adobe.com/cps/828/cpsid_82893.html
    but basically: The main preference file, is on both plaform  Adobe Photoshop CSx Prefs.psp it is located, alongside most other preferences on:
    Mac location: Users/[user name]/Library/Preferences/Adobe Photoshop CSx Settings
    Windows XP: Documents and Settings/[user name]/Application Data/Adobe/Adobe Photoshop CSx/Adobe Photoshop CSx Settings
    Windows 7 and Vista: Users/[user name]/AppData/Roaming/Adobe/Adobe Photoshop CS5/Adobe Photoshop CSx
    Settings Keywords
    pc = C:/Users/user name/AppData/Roaming/Adobe/BridgeCSx/  (note: to view AppData  turn on hidden file option)
    Mac = (your computer name)/ Library / App Support / Adobe / Bridge CSx / Adobe
    Camera Raw location  NOTE:  Should be only one file here.
    PC = Program Files/COMMON Files/Adobe/Plug-ins/CSx/File Formats which gives you Camera Raw.8bi
    Mac = /Library/Application Support/Adobe/Plug-ins/CSx/File Formats/
    Photoshop Actions
    Mac -  Actions (not saved) Actions panel.psp  Users/[user name]/Library/Preferences/Adobe Photoshop CSx Settings
    Mac -  Actions (saved) Actions panel.atn   Program Files/Adobe Photoshop CSx(64bit)/presets/actions
    PC -  Actions (not saved) Actions panel.psp  Users/[user name]/AppData/Roaming/Adobe/Adobe Photoshop CS5/Adobe Photoshop CS5 Settings
    PC -   Actions (saved) Actions panel.atn   Program Files/Adobe Photoshop CSx(64bit)/presets/actions

  • Beans - Active-x Bridge - Problems!

    Hi,
    I developed an ip address bean based on JTextField (JDK 1.3.1_02), successfully packaged it as an active-x control using the packager and instructions in the active-x bridge tutorial.
    The control has all sorts of problems under visual basic: to name a few:
    1. The caret seems to disappear when the control receives focus
    2. The tooltips dont seem to show up.
    3. The focus lost event does not seem to fire in the control.
    Is it worth for me to trace these issues or is the activex bridge not really practically used by anybody ?
    Thanks in advance,
    Vishy

    Vishy,
    Did you by any change find a solution to your ActiveX Bridge problem, I'm stuck with the same shit..
    Thanks,
    Harvey
    P.S. Maybe nobody works with this technology except maybe none-visual components?

  • Virtualbox bridging problem

    I post this a second time, this time more precisely
    Op. System is: Archlinux 64bits
    uname -a:
    Linux archie 2.6.31-ARCH #1 SMP PREEMPT Tue Nov 10 19:01:40 CET 2009 x86_64 Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz GenuineIntel GNU/Linux
    so
    I've installed virtualbox_bin 3.1.0-1 from AUR (the only way possible on a 64 bits opsys, besides the install stuff from Sun)
    Followed the installation given on the Arch Wiki
    I've tried all three methods ( vbox way, arch way, general ) to get bridged networking to work
    ( I'm a lazy guy, I prefer the Vbox way, all my modules are loaded)
    All my VMs are running fine with NAT, everything works,
    but bridging produces a strange error:
    Clients get network adresses via DHCP,
    even fixed IP settings work,
    I can ping ABSOLUTELY ANYTHING
    but no internet connection!
    I have observed the (physical) network card with Iptraf of the HOST machine, the result is strange:
    ICMP packets go through but no TCP/IP communication is possible between my hosts and the exterior world
    AH, I forgot the most interesting one, I've an archlinux VM too, HE IS WORKING FINE, EVEN IN BRIDGED MODE!!!!
    Is that a bridging problem?
    Is that a kernel problem? ( Vbox worked well with the latest kernel - 2.6,30 -, if I remember well...)
    What the hell is going on there?
    ( I really need bridged network, as I use Vbox essentially for network testing purposes)
    Please, help!

    After three weeks of research I have found lots of people having trouble with Virtualbox bridged and host-only networks
    the (partial ) solution is to change the virtual network card, for me Intel Desktop M worked fine with my Debian guest
    but Ubuntu doesn't want to do anything with it
    for some people it works, for others it forks for a while, for others it doesn't work at all...
    Buggy stuff

Maybe you are looking for

  • How to create and add an XML node at run time ?

    Hello and thanks to All of You i've been learning a lot since i use this forum.. I'm having another problem, !!! i would like that my executeShape function insert a new XMLChildnode called "adverts"  to my Pages:XML via the evenListener of the execut

  • Problems sharing internet over Airport extreme

    I have a PowerBook G4 (OS 10.4.11) with a USB wireless broadband modem connected to the internet. I bought each of my daughters a MacBook (OS 10.5), and the idea was for me to have my laptop connected to the internet, then use internet sharing via my

  • Validate XML is disabled

    Hi, I have a simple XML file with a internal DTD. I want to validate the XML file against this internal DTD. Following is the XML file with the internal DTD. Can you please let me know, why is the Validate XML disabled. <?xml version='1.0' encoding='

  • ABAP Object or function module?

    Hello all! I have to create a reusable routine. This routine should be select data from Z table for to get data with a parameter ID. I will pass a ID and expect result a internal table with some parameter values. So, my question is: What i use for to

  • How to set default variable value in the workbook

    Dear experts, I used several queries in a workbook and one of these queries contained a variable, so when every time the workbook is opened there is a window popping up to ask user to input the value for the variable. Now I wanna set an default value