Cisco Wireless :: 1130 - 2.4Ghz Interference In Crowded Space
Sep 11, 2012
We have a small ofice in the 3rd floor of a building and we are using 2 access points Aironet 1130 URL
Since some time now the space has become really crowded with access points. 1 AP is on channel 5 and is almost unusable. The 2nd one on channel 11 has some APs to fight with and with smaller signall strenght.
I have been researching and read a bit about changing some access point parameters (RTS/CTS/timers) on a multi access point environment. I want to do that while waiting for 5GHz AP's (and because not all clients support 5GHz).
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May 12, 2012
I convert IOS Cisco AP 1130 LAP to 1130 Autonomous mode. Well, the periphericals - clients connect to SSID AP no recieved I.P Adress, I think that is not possible active option DHCP server in AP 1130 dispositive. In mode I.P static clients the connection is established successfully.
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Jul 19, 2012
I have recently bought a wireless N 150 usb Dlink adapter, i have installed the software and have conected it to my router using WPS (I do not know the passphrase). The adapter is working excellent but when I added the adapter, my old SSID (Dlink) got switched to Dlinkelb7. Dlinkelb7 has full bars when the old Dlink only comes up so often with one bar. Since the switch of Dlink to Dlinkelb7 my xbox 360 adapter has a very hard time connecting to Dlink and it will not connect to Dlinkelb7 because it needs a passphrase. My router is also Dlink Model DIR-615.
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Feb 17, 2012
I have a Cisco AP1142 Standalone AP at two of my locations. However both of these are being rendered useless every night and require a reeboot to correct the issue, because of the high level of noise and vibrations coming from the extremly loud bands that play there, Someone sugested an enclosure stuffed with insulation but Im afriad of overheating the AP.
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Apr 30, 2013
We're getting complaints about a specific 1131AG in the field only being intermittently accessible. WCS shows both the a and b/g interfaces randomly bouncing, sometimes the reason for the bounce is unknown other times it says it's because it lost connection to the controller. I can ssh into the WCS but the engineer who setup the AP's doesn't seem to have enabled remote access via telnet or ssh.
We are also seeing these events:
802.11a interface of AP * is down: Controller 172.17.0.10 Reason: Max retransmissions for the AP have reached.Interference threshold violation reported by '802.11b/g' interface of AP *, connected to Controller '172.17.0.10'.I know I can adjust the threshold percentage, but that would only seem to mask the issue.WCS gives this version info on the AP:
Versions
<DIV style="DISPLAY: block" id=versions mcestyle="display: block;">
Software Version
6.0.202.0
Boot Version
12.3.8.0
[code]....
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Feb 20, 2012
Just today i've started having problems with my Wireless Network. Other adapters in my area are causing me to get random disconnects every few minutes.I've tried changing the channel on my router several times, but to no avail. Is there anything else worth trying?
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Mar 5, 2012
So I use Shaw as my ISP, with the dlink DIR-655 as my router.Originally I was using the DPC3825, and started noticing some nasty signal fluctuations on my phone and wii (would go from 5 bars to 1 bar, causing netflix to drop out, games to disconnect, phone browsing to stop completely, etc) which is why I bought the DIR-655. I have been looking for sources of RF interference.I do not own a microwave, all the electrical work in this house is brand new, I have no neighbors (live in middle of a forest). I have tried positioning, every wifi channel, building an aluminum satellite dish to direct the signal where I want it to go. I've had it in every room in the house, I've unplugged the fridge and all other RF electronics (cordless phones, etc), and the issue remains.
So what the heck is going on here? Does my house hate wifi signals?I was thinking maybe dirty power, but my house has emergency power batteries that run 24/7. Any dropouts or flickers aren't even noticed by the system. url...This is a picture of the path between the router and my roku box/wii/phone.The router is 1 inch below the camera screen, and the roku box is in the far room. it's 30 feet.what can cause severe fluctuations at 30ft?
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May 21, 2011
I have Wireless-G 2.4ghz 54Mbps (Linksys WRT54G) working perfectly short range. But have no connection when I'm in room about 80 ft from router and have doors to rooms closed. Partitions in home are concrete block, not sheetrock. Should I get a new N router? Is there a repeater or booster that will do the job? Or connect existing router to new router in other room with ethernet cable going outside then over roof of house then inside to room?
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Jun 20, 2012
Although it does accept it in the setup wizard, you cannot change it in the vap list later on, it will throw a popup telling you there's an invalid character.
I'm running firmwarte 1.0.0.3
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Mar 26, 2012
I am using Window 7 and the WRT610N router. I got a bufflao 1 TB USB harddisk connected to the router.My PC can access to the Harddisk. However, but my pc showing the USB harddisk is full. I checked, there are less than 200GB file on the disk. why is that?
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May 7, 2012
I need to upgrade a 1230 to the new Aironet 1250 at a location. I have only 2 external antennas at that location.
I understand that you still can run 802.11n with 2 antennas. But I can not find anywhere in WLC 5508 v7.2 that I can disable the middle nut (C)
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Jan 28, 2013
Can i run both 2.4 and 5ghz at the same time? so my N user's can connect at 300Mpbs on the 5ghz bonded, and my G users can connect to 54Mbps?Also i ask because of coverage, my 5ghz does not cover as far as the 2.4 so those at the extremity's could at least get G with a good signal?
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Jun 4, 2012
1142N-E0K9 will support both 2.4 and 5 ghz or only 2.4 .
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Aug 15, 2012
how to set up support 802.11n on WLC4404 or WLC5508 in the 2.4Ghz? WLC4404 supports 802.11n? or support this protocol only in the brochures? I spent a few days, but did not get the result. I'm connected at speeds 65/130Mbit, but the real speed tests never exceeded 45Mbit. The AP from the test laptop is 7-10 meters.I tested the laptops with a Linksys AP E1200-EE ( 40Mhz, FastEthernet uplink port...)and received nearly 100Mbit!
At WLC5508 able to connect at speeds 150/300Mbit/c but only in the 5GHz band, but real speed tests never exceeded 70Mbit.In 2.4Ghz range I connected at speeds of 130/144Mbit/c, but actual measurements showed no more than the 45Mbit.
All tested with iperf and with site speedtest.net.
iperf -w64K -s
iperf -w64K -i 2 -t 300 -c x.x.x.x
Laptops: Asus (Atheros AR9002WB-1NG) and Sony (Advanced-N 6230).
My tests AP: 3501I-E and 1252AG-A
SW on WLC5508 7.2.110.0
AP tested in different variants - open system and WPA2+AES.
[code]....
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Oct 13, 2002
Can I use the 2.4ghz (product #)air-ant1728 antenna on the new 802.11a cardbus?
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Nov 27, 2011
I know what the problemis i need to tell the AP what the mac of the switchport is but i can not figure it out because it is a CATos Switch?on a IOS I would just use the Show interface command and use the bia but i dont know how to figure out the bia on a CATos?
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Jul 16, 2012
We ordered 2 Cisco AIR-LAP1242AG-E-K9 Wireless Access Points with 4 AIR-ANT5135D-R antennas.We accidentally ordered the 5GHz antennas instead of the 2.4GHz antennas.Would it be possible to use the 5GHz antennas as 2.4GHz antennas?If so, are there any down sides to it?
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Apr 3, 2013
I purchased a EA4500 and at first I could connect to it through its default ciscoxxxxx ssid on my laptop which is 2.4GHz only. I upgraded the firmware using the PC utility and now I can't find the 2.4GHz SSID no matter what settings I do. I've disabled and enabled it multiple times, changed it to have no security or with security and enabled and disabled it and renabled it. Nothing seems to work, but for some reason the 5GHz side I can connect to using a 5GHz device. I've also tried disabling the 5GHz side, but still no 2.4GHz.
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Dec 23, 2011
Decided to go with the e4200v2. 199.99 for a router 450 + 450 with a little extra features. very pricey but thought it would be worth it. I got it hooked up with no problems for the first 5 minutes. I have 35mbps down wired from the router and on the 2.4 and 5.0 ghz band about 25 feet from the router was getting just that!! no loss really. However after a few more speed test i noticed it was fluctuating very slow to fast. Also the 2.4ghz was only 144mbps. after getting in the router i changed the 2.4ghz to channel 6 and 5ghz to 153 and changed to 20mhz only on the 2.4 and 40mhz only on the 5.0ghz. Now all is doing well .
1. why am i not able to run the 2.4ghz on 40mhz? when set to auto i have a lot slower speed tests even know it is running on 20mhz only because I'm only getting 144mbps. I don't know why its not running 40mhz ? i don't know why i have to change it to 20mhz only why cant i leave it on auto and if i had a day with little interference it would switch to 40? when left on auto the speeds go down drastically
2. i notice that some channels are brutally slow on both bands. like 1.5mbps ? is this normal
3. is this even worth it if the 2.4 band is acting this way?
4. from insider i see that 5.0ghz only connects to two channels isn't suppose to be 3?
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Jul 3, 2012
My 2.4 GHz is not working corrently on my EA3500 router. I have no trouble with my 5 GHz which I am currently on. On my iPhone I have to manually click the network even though it is known and then the wifi icon lights up full then goes dim then just flashes til it gives up. If I try connecting with my computer it just doesn't load the internet.
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Apr 2, 2012
what is the reason that cisco 1130 series ap cannot be seen by switch it connected to, by CDP protocol
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Jun 5, 2012
I've got this weird problem with my AP. It keeps rebooting randomly. It happen to all the AP in my campus randomly. It happens recently. It have been commission for quite a long time. ie user able to connect and use it. its connect back to the controller to back in another campus. Below are the logs i gather.
*Jun 7 11:13:54.287: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Jun 7 11:13:54.290: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down
[Code]......
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Apr 2, 2012
Why it could be that switch cannot see Cisco ap 1130 series by cdp .
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May 25, 2012
I'm working in a campus environment that has an existing wireless network using a Cisco AIR-WLC2112-K9 controller.There are 8 AIR-LAP1242G-A-K9 access points connected to the controller. Each access point has a 5.0GHZ 4.5dbi Cisco omnidirectional antenna, although the AP only supports 2.4GHZ.
Q1. Why a 5.0ghz antenna might had been used with a 2.4ghz AP, and if we can expect increased performance if we replace the antennas with 2.4ghz ones?
Q2. On the controller, the antenna gain is set to 0 for each AP. Is there also a benefit to leaving that 0 as opposed to 9 for 4.5dbi?
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May 6, 2013
I'd like to set up a 2.4Ghz and a 5Ghz SSID at the same time, using one Cisco AP541N-E-K9. But I can't figure out any way to do so.
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Sep 1, 2011
I purchased a e4200 in hopes that its dual band capability would allow us to run a 2.4ghz network for certain devices and a 5ghz for everyone else. I am able to setup the router and connect but it seems when the 2.4ghz network drops the router drops all connections.
At first I had the networks setup with the same ssid, then changed the 5ghz network to a new ssid but was still losing connection when the 2.4ghz network dropped. This may be a simple routing issue i am overlooking (bit of a network newbie).
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Oct 27, 2011
On my new E4200, I cannot connect wirelessly to the 2.4GHZ band. I can only connect to the 5GHZ band. I know its not the distance because i've got my laptop only 2 feet away. I've hit the refresh wireless network button, but the only network visible is my 5GHZ. I've also restarted the router, no luck
I went into the router settings and made sure that BOTH SSID'S are broadcasting a signal.and are enabled (ive got the channel and other settings set to auto). I'm able to connect perfectly well to the 5GH band, and walk around the house, but nothing i've done, allows me to see the 2.4GHZ band? So far, my wireless reception is poorer than my old wrt310n.
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Sep 15, 2012
Any info on successfully resetting an light weight 1130 AP to the factory settings? I tried the method described in the doc for 1130 on how to reset 1130 AP to the default settings, but it was not successful. I tried shutdown the AP, and plug in the power while press and holding the Mode button for about 3 seconds.This AP has lost it association with the WLC, is there anyway i can reset the AP to factory default and put in the correct IP address again?
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Aug 13, 2012
I have the problem that the AP1130 can not join to WLC2504.
Console Messages of AP1130:
*Aug 14 09:34:54.029: %CAPWAP-3-ERRORLOG: Go join a capwap controller
*Aug 14 09:34:54.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 192.168.x.251 peer_port: 5246
[Code].....
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Jun 16, 2013
Looking to set up a small office cheaply and quickly and was thinking about ordering a 2006 and some 1130s off EBay. Are the lightWeight 1130s compatible with the 2006?
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Oct 14, 2012
IOS of my access point 1130 was deleted after bad manipulation. I have just a boot but not a flash on my AP. I can connect it just in console mode. What is the procedure to restore the IOS?
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May 1, 2012
When is 1130 AP going eos/eol? I have tried searching, but could just find eos/eol for 1130 power supply and not for the AP itself.
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Aug 5, 2012
i have lwapp 1130 in internal network , i already configure dhcp with option 43, in my switch connected to ap i set vlan 1424 for management AP and the ap got ip addres from dhcp server. The wlc controller is in DMZ with ip 10.222.5.3, from switch connected to ap i can ping 10.222.5.3 , it aslo seperated by cisco asa firewall, i already set allow from 0.0.0.0 to 10.222.5.3 udp port 5246-5247 and 12222-12223.
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