Access point strange spectrum

Hello.
I have 5 APs 3602E. They are all enabled for a/b/g/n standards. When I check client statistics I can see different clients using 2.4nGHz protocol and 5nGHz protocol. But if I take radio analyzer I dont see any 5GHz networks available((( Moreover all Macbooks are connected using 2.4 GHz. I dont undestand why it is so((( I am confused: how many frequencies AP run? One (2.4 or 5GHz continously) or two (one per moment time). If two how to associate with AP using 5GHz? Please help me to undestand the situation.

Hi,
Make sure your analyzer wireless card support both bands 2.4GHz and 5GHz
and 2nd thing i might be possible the mac book which you are using that only works on 2.4GHz band.

Similar Messages

Strange VLAN issue on aironet access points

I'm setting up some access points for WPA. I've ran into a strange issue. The client VLAN (VLAN that the users will be put into) is 1, and the native VLAN is 10. The RADIUS server is in VLAN 1 (but I have a test RADIUS server in VLAN 10 as well). I can connect from the access point to a RADIUS server in either VLAN, and from the RADIUS servers to the access point as well. When I point to a RADIUS server in VLAN10 authentication works fine. If I point to a RADIUS server that is located in VLAN1, and I put the wireless clients in VLAN10 it works fine. But for some reason when I have the RADIUS server and the clients in VLAN (1) and the native (BVI1) interface in VLAN 10 the authentication packets never seem to get to the RADIUS server. It is as if the authentication is being sources out of the wrong VLAN. I can?t find any docs to say that this isn?t a supported configuration.

Hi Shannon,
have a look here:
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00801d0815.shtml#apconfig
- - - Snipp - - -
Significance of Native VLAN
When you use an IEEE 802.1Q trunk port, all frames are tagged except those on the VLAN configured as the "native VLAN" for the port. Frames on the native VLAN are always transmitted untagged and are normally received untagged. Therefore, when an AP is connected to the switchport, the native VLAN configured on the AP must match the native VLAN configured on the switchport.
Note: If there is a mismatch in the native VLANs, the frames are dropped.
This scenario is better explained with an example. If the native VLAN on the switchport is configured as VLAN 12 and on the AP, the native VLAN is configured as VLAN 1, then when the AP sends a frame on its native VLAN to the switch, the switch considers the frame as belonging to VLAN 12 since the frames from the native VLAN of the AP are untagged. This causes confusion in the network and results in connectivity problems. The same happens when the switchport forwards a frame from its native VLAN to the AP.
- - - Snapp - - -
Best regards,
Frank

An Error Occurred while trying to join "my wireless access point"

Hi,
I've been using wireless access for a year and never had a problem connecting.
But starting yesterday I get a +*An Error Occurred while trying to join "my wireless access point", Please try again.+* Message.
I have 2 Mac's and have no problem connecting with the other one. It’s just the IMac.
I tried everything including resetting router, changing password, adding a $ to the password, accessing without password, deleting the whole air port and create a new one, but still getting the same message.
I might need to add, while I was working with the IMac I didn’t use wireless for a few hours, but when I got back to my browser I noticed that I was connected to a different wireless service. (FONFREEINTERNET if it matters) I have no idea why, since I didn’t change it.
Anyways, I tried to switch back to my access point, but it wouldn’t let me. It’ll just give me the +*An Error Occurred while trying to join "my wireless access point", Please try again.+* Message.
Funny is when I use the FONFREEINTERNET access point the internet seems to work fine.
I could look up Google without a problem, but when I tried to connect to Facebook for example it won’t let me. Instead a FONFREEINTERNET page will pop up with some options on how to pay! (by minute/or day/or week…)
I get the strange feeling that they planted some kind of bug/virus!!!
I don’t know what else to do.
Anyone knows that problem? What can I do?
Any help is greatly appreciated!
I researched on FONFREEINTERNET, there’s a spot close to my house/guess that’s the one I used…
http://maps.fon.com/ ZIP CODE 904-0113 and you’ll see a coffee pod, which is about 2 minutes walk from my house.

Hello Tesserax,
I get the same error message again...
I tried the 3 suggested steps again, but unfortunately it did not work.
After a Restart, Sleep or just the awaking from Screensaver mode I’m disconnected from my wireless Network anymore.
Even if the Computer was asleep for just a second!
I am able to fix the problem temporarily with Network Preferences → Assist me → Diagnostics
Choose Airport → Choose network → Enter Password (Even if I check safe password it’ll ask me every time) → and than usually all lights on the left menu switch from red to green and I get the popup message “A Network Change has been detected. Your Internet seems to work fine.” (similar - I’m at work and don’t remember exactly)
And it works fine…until the screensaver comes on or it sleeps again
I have the Problem with my IMac and Mini but the IMac at least remembers my password…
Any Ideas
I’m connected through a Buffalo WZR2-G300N wireless router

AirPort Extreme (5th Gen) WiFi access point disappears but wired ethernet is ok

My AirPort Extreme SSID and access point "disappear" randomly from available WiFi networks. I had a 1st gen AirPort Extreme and never had this problem until earlier this year. I thought it might be a failing radio in the 1st gen unit so I used it as a good excuse to get a 5th gen AirPort extreme about 3 months ago. Same problem has been occuring; unfortunately it is random and I cannot get a handle on what/when/why it is happening.
For example, my iPhone 4S was connected to the network at about 1700 today and when I next checked the phone around 2115, no wifi connection and my network was not listed in the WiFi connections. The base station is away from other wireless devices (mouse, keyboard) and is about 10 feet from the nearest PC and monitor. Both printers are accessed via ethernet, not wifi. The strange and puzzling thing is that the PC, which is connected by ethernet to the AirPort Extreme, is still connected to the internet (I can browse, check email, newsgroups, etc.).
When I run the AirPort Utility, the base station is identified (AirPort Extreme 802.11n 5th Generation), there is an appropriate IP address, Version 7.6 firmware, and MAC address is listed. However, when I attempt to Continue or do a Manual Setup, I'm prompted for the admin password, the progress bar moves during 'reading from the Apple wireless device. Please wait...,' and then the utility reports "An error occured while tryong to access the Apple wireless device. Make sure your network connection is valid and try again. Error -6722.
If I unplug, wait, and reattach the power to the base station, WiFi becomes available again. When the WiFi connection "disappears", the LED light is solid green.
Any insights are appreciated; please let me know other helpful information I can provide.
Scott

I have the exact same problem and it's driving me nuts.
I bought an airport extreme n last week and plugged it in, hooked it up to my adsl router by Ethernet, configured it to set up a new wifi network and got the green light. I use an iPhone 4, iPad 2, and Windows 7 PC with an N wifi adaptor.
The airport works fine for about 2 hours before the wireless network disappears without a trace. Green light remains on the base station and I can connect fine by Ethernet.
"it just don't make sense"
I hope it's not a windows-7-only thing, Apple.
PS. Updated firmware to the newest version, no difference.
Airport is near to a wireless phone so I set a specific wireless channel and frequency to prevent a clash. No change.

How do I configure WRT54G as a wireless access point?

Ater a whole series of problems related to Vista, a WAP54G, Airport xpress, wireless printers, etc. plus at least three hours on the phone with Linksys tech support acessing my computer remotely and still not fixing the problems, I dumped my WRT54GC for a Belkin-N router. I set it up over the weekend and slowly regained internet access, then the pinter, then the Airports.
I still would like to have an access point because my signal strength even with the new N router is too weak downstairs to allow my PS3 to connect to it. I cannot figure out how to configure the WAP54G to make it work. I want to take a shot with the WRT54GC. From what I've read, I should be able to do it.
I can get into the router (referring to the Linksys) no problem. I can reconfigure it to an extent, changing the IP address to the recommended 192.168.1.2. I do this by running an ethernet cable from my PC to the router. Howver, after changing the IP address in the router I can't get into it any more using the new IP address. When I attach teh Linksys router to the Belkin I can't get in either.
Both the Linksys and the Belkin use 192.168.1.1 as the default IP address for each device.
I would like to know what settings I need to change i nteh WRT54G to turn it ino an access point -- an extenson of my existing network with teh Belkin router attached to the Comcast modem. I have looked at various how-to's and they all seem to assume I am connecting the two routers with an ethernet cable. If it's not clear at this point, I'd like to connect them wirelessly.
Thanks.

Thanks so much for the reply.
I was working with it all last night and somethign strange happened. After reading some other info on the internets, I changed the IP address on the WRT to 192.168.2.1. It updated, I then ran the wire from the Belkin to the WRT, I typed in 192.168.2.1, it took me to the Linksys setup page, but when I clicked "wireless" in the WRT setup, it took me to the Belkin setup page. How in the world did that happen?
Armed with tis new info, I did a hard reset on the WRT -- assuming it would change the WRT back to 192.168.1.1 -- got into the setup, turned off DHCP, left the IP as .1.1, and then wired it again into the Belkin. I can now get into the setup of either one.
Here's the thing: I don't want the two routers wired together. I want to move the WRT downstairs so a PS3 can pick up the signal. I want the WRT to wirelessly relay that signal to the Belkin to get the PS3 onto the net. I can't run a wire from the Belkin to the WRT.
I've read conflicting reports about whether the WRT can do this. Other sites suggest adding 3rd party firmware to add that functionality but that will definitely push the bounds of my abilities and likely exceed them. So, can the WRT even function in this way?
Inre the WAP, I don' know why but my ability to access the setup menu via 192.168.1.245 is very hit or miss -- much miss than hit. It makes no sense unless there is a bad connection somewhere because I hard reset, wire it to my laptop, put in the IP, and time out 19 times out of 20. I've got the MAC address for the router, and I think I know I want it to function as a repeater, but I've not been able to get that working right eihter.
Thanks for any further reply.

Access point problem

I installed a MIDlet in my nokia 6600. When application tries to open an Http connection I have to select the access point. In my mobile I have set my default access point. Still it asks me to select access point everytime. How can I make the access point selection automatic? Can somebody please help me?
Regards to everyone.

2.2mb of free space seems to be more than enough for you to create a new access point, hmm.. strange.
Would you want to try freeing some memory space by moving gallery items from the phone memory to the memory card? If it still don't work, restoring of factory settings might work but all data will be lost if you choose to restore all. The last resort would be to have a software reflashing which can be done either via the NSU or at the service point.

AppleTV, iPad, Music, AirPlay & Wifi: Same Access Point? Stuttering. Different Access Points? Just Fine!

I saw some discussions that seemed somewhat like what I have experienced, but thought I'd post this separately just in case.
I have three AppleTV units. Two are wired, and one uses WiFi. The two wired ones work just fine, but using AirPlay for music was terrible for the WiFi one. It would play about a half second of music, then stop, then another half second, and so on, so it seemed to be stuttering and was unusable for that. It was strange that video and its associated audio worked just fine for me!
I did stumble onto something that helped me, but it might not be applicable to all.
I have a Cisco Dual-Band router. It shows as 2 access points/SSIDs - one on 2.4GHz and one on 5GHz. If the WiFi AppleTV and my iPad are on the SAME access point, I get the audio stuttering. If I switch so one is on the 2.4GHz and one is on the 5GHz, AirPlay music works great. It doesn't matter which is on which, but if both are on the same one, I get music stuttering.
I plan on switching one or the other of the wired units to use WiFi for a test to see if they all exhibit this behavior, but the behavior was reliable on the one AppleTV I use via WiFi.
I was actually going to switch from the 5GHz AP to the 2.4GHz AP for both to see if it worked differently, and happened to test when one was on each, then followed it up with tests for all 4 of the configurations (2.4-2.4, 2.4-5, 5-2.4, 5-5).
If you aren't using a dual-band router, I don't know if there is any way to take advantage of what I see in my configuration, but I thought I'd share the information in case it does provide some options.

Airplay uses ethernet / ip broadcast. This only works on the same ip subnet. A router typically connects different subnets. Hence being in one subnet you won't get the broadcast packets and won't see the advertised "airplay" services of the apple TV. You should make both "sides" (in your diagram) of the router into one subnet. That might involve connecting everyting to an ethernet switch.

User unable to connect to new access point AIR-CAP3502P-S-K9

Hi Guys,
In my branch there are 8 access points[ AIR-CAP3502I-S-K9 ] connected to Wireless controller which is been working fine since the beginning.. I had to add two more access points to this branch and after the failure, i realised this Access point [ AIR-CAP3502P-S-K9 ] is latest and it needs the minimum image 7.3.101.. So i did a upgrade on WLC 5508 and all 10 access points have joined successfully...
Issue am facing is when NEW users come under AP 9 and AP 10 get associated successfully, but the old users(Projetc Manager) who been in the branch for very long and able to get associated with other AP's [1 to 8] gets associated successfully with all old AP's but not with the new AP's..
Could please some one advise, why this strange behaviour... I googled for answer but am not getting any right solution...

Issue am facing is when NEW users come under AP 9 and AP 10 get associated successfully, but the old users(Projetc Manager) who been in the branch for very long and able to get associated with other AP's [1 to 8] gets associated successfully with all old AP's but not with the new AP's..
Do you have AP Groups configured?
The old wireless clients, are their drivers up to date?

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

Problem with creating an Infrastructure Network (via Access Point) for WLS 9163.

Hi,
I am trying to connect the WLS 9163 to an Infrastructure Network (via an Access Point). I have connected it via an Ethernet cable and am using MAX to configure it.
The setting are as below:
Obtain IP Address through: DHCP
Country: US
Radio On: Yes
SSID: wireless (selected from drop down implying the wireless network is detected)
Wireless Mode: Infrastructure
Authentication: Open
After doing these settings, I click on Save Settings. The device reboots itself and takes the IP address, Subnet mask and default Gateway automatically. The WLS link LED on the device is also turned on. The System State is 'Connected' and both the Wired and Wireless Connection Status is shown as 'UP'.
So far so good.
Now if I remove the wired connection and refresh the device, it does not get connected via wireless (which I believe it ideally should). The System State is shown as Disconnected.
I am using a Phoenix Contact WAP and have set the authentication as Open.
Please suggest some solution.

I had this exact same problem and it took me a while to figure out. As strange as this sounds, I figured out that for some reason if I had the WLS-9163 too close to the router and I pulled the wired connection, the wireless connection could drop. I read on a post in a different forum about someone removing their antenna and it working just fine so I tried that and it worked off and on but mostly off. So I figured out that the further distance away I was the better the connection stability was and I got far enough away from the router to where it was a steady solid wireless connection. This sounds really backwards from what it should be and was really bizarre but I tried different routers, used all different types of settings, had the latest firmware and had all of the equipment sitting on my desk and could not get it working once I removed the wired connection. This may not solve your problem but this worked for me so I thought I'd share that info. I was just so shocked to figure out being too close to the router seemed to be screwing my stuff up.

Netctl connects to access points I've never seen before

On my laptop using netcl and auto switching profiles as described in https://wiki.archlinux.org/index.php/Netctl.
Recently, and more than once, I'm connected at a public cafe and I'm suddenly no longer able to reach the internet.
When I investigate, I find that I'm no longer connected to the cafe's wifi, but I am connected to some other essid that I've never seen before. This is disconcerting for possible security reasons but also annoying to get disconnected in the middle of whatever I'm doing.
The essids that my box connects to I've never seen before. (I'm assuming the come from nearby computers.) There is no corresponding profile in /etc/netctl.
To work around the problem, I run
sudo systemctl stop [email protected]; sudo wifi-menu
then reconnect to the access point I was originally connected to.
I really don't want netctl-auto to change a connection that is working. How can I prevent this from ever happening?

That file has a long list of every wireless router I've connected to! I didn't know that was there. It duplicates a lot of information thats in /etc/netctl/... It has passwords, too. I'm not going to post it here.
But I don't see the mysterious routers in that file. The ones I find myself connected to, that I never connected to myself.
... Looking over that file again, I see a strange entry:
network={
key_mgmt=NONE
ssid=""
id_str="wlp3s0-none"
I'm going to delete that. I believe it comes from a time I connected to an essid without a name. But I'm not sure if that's the culprit.
Last edited by Dave Cohen (2014-02-14 17:03:32)

Typical propagation distance of outdoor(1552E series) access point

Hello All,
I need to propose an design for outdoor WAP deployment for an huge resort. As it is a complete open space area without any obstruction, I believe the signal can be propagated easily in over 35 meters radius across the access point. However I don't get any documentation to know exact propagation distance.
Could someone please share their experiences as to what is the ideal distance of signal coverage that could be covered by a typical Cisco outdoor access point? I do not want to go for over quoting as that might result from the client opting for other vendor's product. I would thus want to go with most appropriate plan.
Also apart from 11ac capability and multiple spatial streams, does 1570 AP have any other major improvement as well our its predecessor 1552E series AP.
Please share your expereinces.
Best Regards,
Muhammed Adnan

Factors Affecting Wireless Networking Performance
There are many factors that affect your Wireless Networking Performance that are dependent on various areas within the network itself from the technology of the devices used, the local environment the signals will travel through, the fundamental physics behind wireless transmission and more. Some of these cannot be avoided and measures must be taken to try to minimise the negative affect that these factors will have on the network performance but others can be resolved completely either though equipment upgrading or good network planning.
There are some well known factors that affect Wireless Networking performance that most people will identify easily but that does not lessen their importance when considering network planning, these are:
Obvious Factors Affecting Wireless Networking Performance
    Physical Obstructions
    Network Range & Distance between Devices
    Wireless Network Interference
    Signal Sharing
Quite Well Known Factors Affecting Wireless Networking Performance
    Network Usage & Load
    Poorly Deployed Antennas
    Local Environment Characteristics
    Spectrum Channel Limitations
    Signal Reflection
    Wireless Signal Restriction
Lesser Known Factors Affecting Wireless Networking Performance
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How can i change regulatory domain C to A of access point

Recently my office got an access point - (AIR-CAP2602E-C-K9) which is not synchronizing with controller (AIR-CT2504-5-K9 )as it is in domain A , all other AP also in domain A. Now can i change the domain of access point or what is the possible solution to add new AP with controller ? is it possible to run both domain (A, C) at the same time with one controller ?

Migrating Access Points from the -J Regulatory Domain to the -U Regulatory Domain
The Japanese government has changed its 5-GHz radio spectrum regulations. These regulations allow a field upgrade of 802.11a 5-GHz radios. Japan allows three frequency sets:
•J52 = 34 (5170 MHz), 38 (5190 MHz), 42 (5210 MHz), 46 (5230 MHz)
•W52 = 36 (5180 MHz), 40 (5200 MHz), 44 (5220 MHz), 48 (5240 MHz)
•W53 = 52 (5260 MHz), 56 (5280 MHz), 60 (5300 MHz), 64 (5320 MHz)
Cisco has organized these frequency sets into the following regulatory domains:
•-J regulatory domain = J52
•-P regulatory domain = W52 + W53
•-U regulatory domain = W52
Regulatory domains are used by Cisco to organize the legal frequencies of the world into logical groups. For example, most of the European countries are included in the -E regulatory domain. Cisco access points are configured for a specific regulatory domain at the factory and, with the exception of this migration process, never change. The regulatory domain is assigned per radio, so an access point's 802.11a and 802.11b/g radios may be assigned to different domains.
For more information please refer to the link-
http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/321930RN.html#wp111182

WLAN 4402 Access points hang or reboot

We are seeing a very strange issue in our WLAN setup. Our access points hang or reboot randomly. We have WLAN controller 4402 with 25 Cisco 1020 Access points. Our syslog server shows for some access points rebooted. While others just hang and then come back online after 10-15 minutes. We have similar code 3.2.78.0 running at other sites and everything seems to be stable, therefore we do not want to upgrade or install a new code. Any suggestions, or help will be highly appreciated by the experts.
Thank you
Ismail

The errors we saw were "[ERROR] spam_lrad.c 1840: AP 00:0b:85:66:77:88 associated. Last AP failure was due to Configuration changes, reason: did not get join response"
We called Cisco TAC, got the case escalated to the highest level possible, till we got hold of the actual developers of the code. Gave Cisco engineers the Sniffer packet information of the wlan controller and AP.
Finally Cisco engineer found a bug in the code 4.0.179.8 The bug will be fixed in the next release.
Thank you
regards,
Ismail

E63 Packet data Access point set to None? What hap...

What happens when Packet Data>Access point is set to None(blank)? I tried to tether with my phone and I was connected to the internet for a moment. Checked my ip and it turns out it's through my mobile phone companies subnet.
However via the Bluetooth DUN setup on my computer I specifid a computer and login information which it seemed to ignore? Can anyone explain this strange situation?
The phone I'm using is an E63 GSM phone.

that will work. You only need to change if you need to have always on (highly unlikley) or if you are using modem dial up and need to specify access point for that.
If you using Nokia One Touch access then you don't even need to define access point in this menu as that application will take care of it for you.
All other network aware applications will use access point settings as defined in settings menu.

Access point strange spectrum

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