Delay in cisco wireless network

hi all,
I have wireless LAN network and when i transfer a file to or from a server in my wireless LAN i face a delay.
i tried to ping -t this server and the delay was from 4 to 5 msec and sometimes reached 80msec
i have only one controller
please advice

Hi,
Symptom : On a channel with high utilization and interference numbers, the RRM DCA algorithm might not change the channel when it should. As a result, the channel assignment for a few access points may be suboptimal, which can negatively impact performance.
Condition : If a channel change that is required to avoid the high utilization or interference has an adverse effect on the RF neighborhood, it might prevent the channel change. Release 6.0.182.0.
Workaround : Configure DCA back to aggressive mode.

Similar Messages

MacBook Pro will not connect to Cisco Wireless Network

I have just bought a brand new MacBook Pro, running Leopard (OSX 10.5.1) and I just cannot get it to connect to the Wireless Network at my workplace.
The MBP connects to wireless network and authenticates just fine, but will not obtain an IP address from the DHCP server.
The wireless network consists of 16 Cisco Aironet 1200 Access Points controlled by a Cisco Wireless Network Controller. It does not broadcast its SSID and is WEP 128-bit hex protected.
Changing the network from WEP to WPA is out of the question for me as this is under the control of my customers IT Department and they do not have any problems with their PCs connecting to the network. It appears to be an Apple issue.
For reference, my old Vaio PC, my Nokia N95 and my iPod Touch ALL connect to the same wireless network without any problems whatsoever, first time, every time!
If I boot into Windows XP from my Boot Camp partition, XP can connect wirelessly to the network without any problems, so it is not MacBook hardware related...
It has to be a bug in Mac OSX... doesn't it?!?
Things I have already tried (following suggestions on many forums):
* Switching Airport off/on
* Deleting various network-related Plist files and rebooting
* Manually assigning an IP Address (not really permitted but doesn't work anyway!)
* Disabling all network adaptors except Airport
AP Grapher shows that the MBP is connected to the wireless network, at good strength, and packets are being sent and received, but Internet Access is not possible as no IP Address has been assigned. Instead, my MBP shows a 169.* IP Address (self-assigned). It should be a 10.1.255.* address.
Can anybody please help? Thank you.

i posted this same reply elsewhere because it worked for me for my Buffalo wireless router: try manually setting your IP address instead of relying on DHCP, which sometimes (I don't know why) doesn't work well with Macs. It's a good get around. I am a happy Mac user but nothing is perfect on earth, and when the Mac gives problems, it does give a lot of frustration. Macs are not as easy to troubleshoot as Win because a Mac is built to be user friendly(and it works most of the time), meaning a lot of the background computing stuff is hidden away from users to avoid user accidentally upsetting some settings.
Unfortunately, the highly automated troubleshooting wizards provided by OS X are not perfect so when these software wizards fail to resolve the problem, like my Network Diagnostics, I have to spend more time tinkering around. There's "Terminal" of course but then most of us, especially PC converts to Macs, don't know how to use it.
You should also try updating your MBP, see if there are any new updates being released.

Window 8 WiFi problem with Cisco wireless network

Anyone encounter a Windows 8 WiFi authentication problem with Cisco wireless network?
We are using WLC 5508, 7.2.111, and AP 3602i with WPA2.
Sent from Cisco Technical Support iPad App

This problem occurred with Soney, and Dell models. Lenovo with Windows 8 factory installed is working fine.
Won't make any difference as these laptop's wireless NIC cards are different.
Can you try with OPEN authentication. If the Sony and/or Dell laptop works, then you start cranking up the security and/or encryption settings until you break them.
I'm with Scott here: It's got to be a wireless NIC card driver.
As what George has stated, post the debug of the failed attempts.

I have an iPad with iOS 5.0.1 that is not able to connect to cisco wireless networks at work.

Hi, I have an iPad that is not able to connect to any of the Cisco wireless access points at work. The iPad is on the latest iOS 5.0.1. I did a reset on the iPad and erased all content and settings. The wireless network I'm trying to connect uses WPA2 Enterprise encryption. I'm able to connect to a Verizon mifi device so I know wireless is working. It seems like it's just not getting the certificate. I'm able to connect to our wireless network from other iPads just fine except for this one device. Please let me know if there is anything else I can do to troubleshoot the issue. Thank you.
Julio

I suggest updating using iTunes on your computer (current version: 11.0.3).
Update iOS first, then apps.

IPad wont connect to cisco wireless network for my school

it finds the wireless fine but i connect and it makes me log in using my school info so i enter that and touch connect and then it wont log in but my iPhone works fine to do this so why the crap cant my ipad do this if i would of known this i would of bought me a 3G version. im considering taking back my iPad now.

Do you have IT support at your school? If so, see if they can assist with any setup requirements on the iPad.
If not, compare the wireless network setups on the iPhone to the same on the iPad. Maybe the cause will be apparent.

Nokia E51 + Cisco Wireless Network + disable verif...

Hello
My school has new wireless infrastructure powered by Cisco (WPA/WPA2 Enterprise, AES, PEAP). With PCs and Macs everything works fine. In Windows XP/Vista/7 i can easily disable verification of certificate just like in manual (first picture on last page):
http://www.kozminski.edu.pl/gfx/kozminski/files/dzial_it/wifi_xp_eng.pdf
Is it possible to do something like that in E51? There is no such option in menu.

cynamon wrote:
Hello
My school has new wireless infrastructure powered by Cisco (WPA/WPA2 Enterprise, AES, PEAP). With PCs and Macs everything works fine. In Windows XP/Vista/7 i can easily disable verification of certificate just like in manual (first picture on last page):
http://www.kozminski.edu.pl/gfx/kozminski/files/dzial_it/wifi_xp_eng.pdf
Is it possible to do something like that in E51? There is no such option in menu.
Yes, there is this option. Chech page 117 of the English manual about EAP plugins.
http://europe.nokia.com/support/product-support/nokia-e51/guides
‡Thank you for hitting the Blue/Green Star button‡
N8-00 RM 596 V:111.030.0609; E71-1(05) RM 346 V: 500.21.009

I cannot get the Amazon kindle to connect to my Cisco Wireless network

I'm running the 1142 APs with version 6.x on the WLC 4400. I have no security at the moment. Any ideas why it won't connect?
thanks
Gary

I suppose that all other devices can connect with no issues? Well what does the WLC log show when you try to connect?

Macbooks unable to get DHCP from Wireless Network

Our PC Laptops can connect to our Cisco Wireless Network (using wireless controllers and lightweight AP's) without issue.
However Macbooks and several other devices are able to connect and get an IP address via DHCP. If I manually put an IP in the Macbooks wireless configuration it can connect without issue, if I don't do this the Macbooks timeout and say using self assigned ip address and will not get on the network.
Any thoughts on what is causing this and how to fix?
Jim

Make sure you don't have client load balancing enabled on the WLAN advanced tab.
Sent from Cisco Technical Support iPhone App

Upgrading Wireless Network

Hello, I would like to receive some help in a project of upgrading a cisco wireless network.
It's a network with 20 AP's 1230 802.11b/g and 5 AP's 1140 802.11n with 1 Cisco WLC 5508 7.0.x and 1 WCS for guest access, monitring and reporting
The project is for replacing the 20 AP's to 802.11ac, upgrading WLC and WCS software and adding redundancy (backup controller) to the solution because at this moment the controller is a single point of failure.
Any help with what do i need?
Thanks

I would start this project with reviewing the usage of the wireless network. So you are going to use 802.11ac, great, but with what requirements in mind? There is a change that those have changed since the current network was deployed. You can do a 1:1 replacement, but I recommend doing a survey with the 2700 access-point and the current (or future) requirements in mind.
If it is just a pricing thing, I would count on 20x 2700 access-points, one AIR-CT5508-25-K9 controller*, a extension of the current smartnetcontract, an upgrade of the WLC software, the configuration changes and a new implementation of Prime infrastructure with enough lifecycle licenses.
*: Instead of buying a new physical WLC with 25 licenses you can also buy a HA WLC. An other option is migrate to a vWLC and buy new AP licenses, but you don't have all the features you have right now so that depends on your current deployment.

Our wireless network always disconnect clients

Hello,
I'm newbie on Cisco wireless network, please give me some help on our Cisco WLC 2500, for example how to check and configure channel ?
Thanks

Hi Leo,
After read your link, which file I need to upgrade of the following items ?
•Early Deployment (ED)—These software releases provide new features and new hardware platform support as well as bug fixes.
•Maintenance Deployment (MD)—These software releases provide bug fixes and ongoing software maintenance.
•Deferred (DF)—These software releases have been deferred. We recommend that you migrate to an upgraded release.
And how to upgrade existing APs from WLC ?
Thanks

Multisite wireless network

Hi,
I'm finding one Cisco Wireless solution for deploy in my company. Now We have 3com wireless network in HQ and in branch offices don't have wireless network.
My idea is quit all 3Com network and deploy a centralized Cisco wireless network. If I install Wireless Lan Controller in HQ and deploy several APs in the HQ and branch offices, could I management all APs from this WLC?
Thanks in advance.
Javi

Cisco ACS is for Security purpose.. for any 802.1X authentication using external servers and all.. if you wanna use external servers for advanced authentication then this is neded..
WCS is the management and monitoring software. if you have multiple WLC and if you wanna manage ur network by one click, then we can use this.. instead of configuring on each and every device you can simply push the configs..
the questions that you have and these services cannot be linked.. The questions that you asked is to ge tthe network up and running and these services are for managing the network which is up.
Let me know how this answers your question..
Regards
Surendra

How many clients can connect through cisco AP 1310 in wireless network ?

I had setup wireless network with
wlc4402,cisco AP 1310.1131 and 1242 and Cisco acs 4.1.My problem is only 30 clients connect through Cisco AP 1310 at a time.I can not connect more than 30 clients at a time.What is the issue in wireless network?please reply .
Thanks and regards
By
D.Anbudurai

WIRELESS > 802.11 > RRM
How can do that setting ? Can you reply with
some brief steps? And also I want to know how
many clients can connect in wireless network at
a time exactly through cisco aps?
Thanks and regards
d.anbudurai

Is it possible to use Airport Express to extend my Cisco E2500 wireless network

Hi everyone,
I just bought the new 2012 Airport Express yesterday, and want to extend my network which is using Cisco E2500 via the Ethernet port, but I don't know how to do it, anyone can tell me if it is possible and how to do it?

Hi Bob, I have successfully extend my Cisco E2500 network using the 2012 Airport Express via Ethernet port, below is the things I have configured.
1. Inside AirPort Utility - Wireless Tab, choose "Create a wireless network" in the Network Mode option, use the same Wireless Network Name, Wireless Security, Wireless Passowrd as the Cisco E2500.
2. In the Internet Tab, I just choose using DHCP since the Cisco E2500 will be the one to distribute IP Address, then the IP address, subnet mask, router address and DNS servers address has been assigned successfully to Airport Express.
3. In Network Tab, use "Off (Bridge Mode)" for the Router Mode option.
4. Click Update, and let the Airport Express to update itself and restart.
All done, and all my devices in different part of my house can access the internet connection, also my iMac in the living room and airplay music to the speaker that connect to my Airport Express inside the bedroom.

Hi I am hoping to add my 2 TB time capsule to my existing wireless network using cisco dpq 3925 modem. I have two mbp one running Yosemite and the other os 10.7.5

I have a time capsule 2TB model 1409. I would like to connect it to my existing wireless network (using a cisco DPQ 3925 modem). I have two mac book pro one running Yosemite and the other OS 10.7.5. The best I can do is to connect the TC to the Modem via ethernet. Have one of my MBP connect to the time capsule using a ethernet cable and have the TB set to bridge mode. In this configuration, both mbp and the iPad can detect the TC but when I try to connect it to the wireless network, using the same network name and password, the light flashes amber and I cannot detect the time capsule again.

Correct..
The best I can do is to connect the TC to the Modem via ethernet.
The TC does not connect to non-apple routers by wireless.. well. It is possible but so poor a method that Apple seem to have eliminated it in the setup wizard.. I would take that as a good thing..
If you cannot use ethernet you have two choices..
Use another apple router that is plugged into the Cable modem.. eg a second hand Extreme Gen5 or the latest Express.. the Extreme is both cheaper and better.
Or you can use a set of EOP (homeplug) adapters.. but they cannot be guaranteed to work so you should buy from a place that allows returns.

Network ready for Cisco wireless ?

I know for IPT their is lots of network readiness guides. Is their anything like that for Cisco wireless (with central controler)? We looking at putting in Dell swithcs and not cisco. Anybody have any switch level feture I should be looking out for?

For autonomous you would likely need less features on a switch then with autonomous access points. I'm not a fan of Dell switches, but at the edge they should be fine. With the lightweight APs you don't have to trunk to the access points ('cept H-REAP configs), so you could potentially plug them into hubs!
I would probably look for a PoE midspan if you are not using the new 3560E swithes. Microsemi sells a managed hi-power midspan that support all Cisco access points all the way up to the 1250s (and assumptively beyond). Purchasing 802.3af PoE now seems like a bad idea.

Delay in cisco wireless network

Similar Messages

Maybe you are looking for