Access point channel config

hi
I have 5 access points and want to configure channel and its frequencies...
what should be the channel frequency and its operating mode so that user would get bestpossible results??
I am facing some wifi fluctuation problems
I have set frequency channel to auto
operating mode to mixed
channel bandwidth 20
I am using trendnet 638AP
please help

Think of it like a classroom. We'll call the students channel 1.
So when a student is talking, no one else should be talking, so that he/she can say what the need to. Now a step further, if all the children are trying to talk at the same time, no one can hear what anyone else is trying to say, the all interfer with each other.
Now, you have three children, 1(spanish),6(english), and 11(french). Now each of these are speaking to their translator. Because they are different, they can all speak at the same time withouth inteferring with each other.
An odd analogy, but does it make sense?
Steve

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I work at a University where there is a large Campus Area Network, which has many different connection points for the same network (eg. "University Wi-Fi Network")
I connect my macbook to the network, then I connect my iPhone to the network as well, both via Wi-Fi, however I cannot sync from certain apps / use the keynote remote because the iPhone does not see the macbook and vice versa.
Is there a way to specify which channel or access point (i may not even be using the right terminology here) that the iPhone uses to connect? Or is it even possible just to see that information so I can direct my macbook to connect to the same access point that the iPhone is using?
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I cannot print. Printer is wirelessly connected to the airport extreme router.
My printer says that the network connection passes all tests but there is a note: "A router/access point channgel conflict has been detected.
The Epson Printer utilitie says only "Communication error". I've tried changing channels to no avail.

I finally figured out how to fix this after a few weeks of being with out my printers. I tried the reboot of everything and it didn't work. I went into the airport utility and start poking around. I tab through all the various setting and everything looked good. By virtue of tabbing the "update" button was active. I hit that and the airport extreme router rebooted and bingo the printer works for all my PCs and MACs. This seem to have started with the last epson update but who knows. Good luck

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I know there were a few post about users losing their access point config after a power loss to the ap. I wanted to share that I can confirm and reproduce this same issue with a number of access points that I have. I opened a tac case and will update this tread as the case progresses.
Wlc 5508
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7.0.220.0
Sent from Cisco Technical Support iPad App

You mean anything 5.x, no but I might have to .. So Im told a bug was open for this .. I will update thread as this progresses.
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin

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Hi
I have several AP541 (on different site locations) which I have currently configured for WPA enterprise using windows 2008 as the Radius server. This works fine for staff members who use the wireless when roaming around the offices.
I would also like to setup another VAP for guests to allow them to access our internet but nothing else on the network. I was wondering what approach would be the best one to adopt to achieve this. Would I be best to setup a WPA Personal VAP and allow guests to access the wireless this way. Or is there a better approach? If we did adopt this approach I presume this would mean that we have to log onto each AP in turn and then change the WPA key on each one everytime we decide to change the key? Or is there some clever software I could use to change them all in one go.
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Hello Simon,
I would keep them all in Access Point mode if you are planning on having them all hardwired into your network. That is the best setup.
As for Wireless WDS repeater or Wireless Client/Repeater, you would use these features if you are trying to extend your wireless signal at a certain location in your building but you are not able to run a ethernet cable to that location. So all you would do is power up the WAP4410n and it will help increase the wireless signal in that location if set in repeater mode. The draw back to this is it will cut your througput by half.
Wireless WDS bridge, you would use this feature if you are wanting to extend your network to a location were you are not able to run a ethernet cable to. Once you set up the bridge you would place it in the location were you are wanting to extend your hardwire network. If you plug a PC into the ethernet port on the Bridged WAP then you should be able to pull a IP address from the main network. When set in this mode it will not broadcast a wireless signal.. so you will not be able to connect wirelessly to the device once it is in Wireless Bridge mode.
Wireless Monitor.. not sure about this feature.. never used it.
This keep in mind that these devices will usually only bridge or use repeater with themselves and not other devices.
If you are wanting to start adding VLANs in the future you will need to stick to Access point mode since that mode will allow you to set up more than one VLAN the WAP can look out for. If you use repeater or bridge mode feature you will only be able to use 1 vlan.
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Can you connect if you temporarily turn off WEP or WPA?
This will determine if it is a WEP or WPA issue.
Does your PC support WPA, from both a hardware and a software perspective?
The problem you are having probably lies with the encryption key.
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http://tech.ifelix.net/1011.html
Accessing a Airport Network with a Windows XP PC or laptop (with XP SP1)
http://tech.ifelix.net/1010.html
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Single access point with multiple ssids and single channel possible?

Hi everybody.
I have this silly question.
Let say we have three vlans, vlan1,2,3 and they are mapped to wlans as follows:
Vlan 1 ssid1
Vlan 2 ssid2
Vlan3 ssid 3
AP --------trunk------Switchted network.
Our Ap has mobile devices in three wlans, i.e ssid1ssid2 and ssid3
Since AP uses half duplex mode, mobile devices need positive ack from ap before they can send data, therefore once channel let say channel 3( assuming 802.11b is used) can be shared by all mobile devices in three wlans.
Is my understanding correct?
Thanks and have a great weekend.

Hii ,
Yes ,that is pretty much possible as suggested by other experts on board. Depending on your access point you will have 1 (2.4 GHz) or both 2.4 & 5GHz radios.
You can configure multiple SSIDs (up to 16 ) known as MBSSID mode in autonomous environment. In Controller based architecture you can configure up to 512 WLAN (SSID) and transmit any 16 of them per AP (using AP group feature). However , it is recommended to keep multiple SSID count below 8 as for each SSID separate beacon will be sent on air which consumes more air time.
Hope this helps
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Wi-Fi Access Point with B Channel or Wi-Fi with B Channel

What does Wi- Fi with B channel or Wi-Fi Access point with B Channel mean. Can someone explain me. I am confused

I don't know what your asking. if your talking about 802.11b, that is a standard and you can compare the difference of 802.11b, 802.11a, 802.11g, 802.11n and or 802.11ac. Wireless devices, that means client devices have to be able to support the standard that the access point is using. So if an access point is 802.11b only, the wireless client device has to be able to support 802.11b. If for example, the access point is 802.11b/g/a/n/ac, that means the client has to be able to support at least one of those standards to be able to connect.
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http://compnetworking.about.com/cs/wireless80211/a/aa80211standard.htm
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Help out other by using the rating system and marking answered questions as "Answered"

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Hi,
I have configured the below mentioned configuration for my Access Point. These wireless networks are not appearing in windows client network list. I have tried explicit scan also. Still it is not showing networks with 184,188 channels. But it is showing all remaining networks.
Country code: JAPAN
SSID for WLAN 1: Wireless Network1
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WLAN 1 alt. channel: 188 (4940MHz)
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(1) Do I need to set any region settings at Adapter?
(2) Does adapter firmware depends upon
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(3) Is there anything wrong with adapter vendor driver? Do I need to set anything in driver level for supporting JAPAN channels.
Anyone please help me to identify and resolve the above problem.
Thanks

Ensure the world mode in the adapter is enabled so that it can scan any of the country channels. Ensure that the Broadcast option is enabled for the WLAN and that the SSID has been enabled on the corresponding Radios of the access point .

Scanning Access Points configured with JAPAN Channels

Hi,
I have configured the below mentioned configuration for my Access Point. These wireless networks are not appearing in windows client network list. I have tried explicit scan also. Still it is not showing networks with 184,188 channels. But it is showing all remaining networks.
Country code: JAPAN
SSID for WLAN 1: Wireless Network1
WLAN 1 mode: 5 GHz 54Mbps (802.11a)
WLAN 1 auto channel: Enabled
WLAN 1 channel: 184 (4920MHz)
WLAN 1 alt. channel: 188 (4940MHz)
SSID for WLAN 2: Wireless Network2
WLAN 2 mode: 5 GHz 54Mbps (802.11a)
WLAN 2 auto channel: Enabled
WLAN 2 channel: 188 (4940MHz)
I am using CISCO AIRONET 802.11a/b/g WIRELESS ADAPTER. This problem can occur due to the following reasons.
(1) Do I need to set any region settings at Adapter?
(2) Does adapter firmware depends upon
country? How do I check the adapter firware?
(3) Is there anything wrong with adapter vendor driver? Do I need to set anything in driver level for supporting JAPAN channels.
Anyone please help me to identify and resolve the above problem.
Thanks

What channels are available? The 802.11b standard defines a total of 14 frequency channels. The FCC allows channels 1 through 11 within the U.S.; whereas, most of Europe can use channels 1 through 13. In Japan, you have only one choice: channel 14.
An important concept to note regarding channel assignments is that the channel actually represents the center frequency that the transceiver within the radio and access point uses (e.g., 2.412 GHz for channel 1 and 2.417 GHz for channel 2). There is only 5 MHz separation between the cente frequencies, and an 802.11b signal occupies approximately 30 MHz of the frequency spectrum. The signal falls within about 15 MHz of each side of the center frequency. As a result, an 802.11b signal overlaps with several adjacent channel frequencies. This leaves you with only three channels (channels 1, 6, and 11 for the U.S.) that you can use without causing interference between access points.
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html

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Firstly you need to use WPA2/AES or OPEN authentication.
Cisco 802.11n Design and Deployment Guidelines
http://www.cisco.com/en/US/solutions/collateral/ns340/ns394/ns348/ns767/white_paper_80211n_design_and_deployment_guidelines.html

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Access point channel config

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