Cisco Wireless :: WNCE200 - Unstable WGB On WLC
Jun 11, 2012
I am currently seeing some stability problems with a 2504 WLC and a wireless bridge (Netgear WNCE2001 to be exact). The wireless bridge can connect to the network, but is very unstable. It will disconnect after 5 - 60 minutes of operation.
I believe part of the issue is that the bridges, when associated, do not show up as a WGB according to the WLC.
Any WGBs that are known to work well in a controller based environment? The WLC is running 7.0.220.0 and the APs are 1142s and 3502s.
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Mar 1, 2009
I am having trouble with an pair of WAP200E's. The bridge between them stalls, found that one of the AP wireless LED don't show any activity. After powercycle the stalled AP, the bridge works again for a day or two. Have tried to replace the AP's still the same issue
Firmware is 1.20a
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May 31, 2011
I recently moved back home with my desktop that use to be plugged in via ethernet. I bought a PCI Wireless card and I have been having problems connecting to and staying connected with the network. Once I am connected the connection speed is very slow. I have tried reinstalling windows and my card several times, even going to the store to swap it out. I have a feeling that one simple setting is changed, but I can't figure out what it is. I am currently on a laptop that is also running windows 7, but has none of the problems of the desktop. I tried to run the Netalyzer program on the desktop, however, the network disconnected as soon as I tried. Here is the link to the results from my laptop that is connected to the network: ICSI Netalyzr — Results
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Jul 10, 2011
So my issue has been going on for a while now a while after I replaced the router from a DIR-535(If I recall) to a DIR-635. Now the problem resides in my computer however as it would seem that I randomly tend to loose internet acces and it only applies to my computer in the form of obviously loss of internet and the horrid warning triangel in the corner. I've tried removing and restarting the connection without any succes, I also tried to do a ipconfig /release /flushdns and /renew but it didnt seem to do anything either, basically been throwing attempts at a wall to see what works.
As far as the actual card goes it's a Atheros AR9285 Wireless Network Adapter.
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Aug 21, 2012
Before I put in place any network security appliance POC, my wireless network worked fine.Note: ethernet works fine all the time and confirm my internet is okay too. Just wireless.
First time, I got Palo Alto vendor to setup POC. It screwed up my wireless. We removed on 1st day itself and re-configured everything all over again.Now before holiday break, Sonicwall vendor setup POC for us. It worked fine though for 1 week and now the wireless gone crazy again.
3 bars, 2 bars, 5 bars, sometimes no bar.Then when there's POC, my guest wireless network will dead too.
I can't figure out the problem and what's causing such instability?If I understand correctly, this is how my network works:-
sonicwall nsa 2400 (router 192.168.1.1)
cisco linksys wireless (before sonicwall, we used this as router. Now used as wireless access point).
tp-link 48-Port 10/100Mbps + 4-Port Gigabit Web Smart Switch
is there anything in particular I should take note about? or any tools to analyze my wireless network problems?
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Jan 14, 2013
I bought a Netgear N600 wireless adapter (WNDA3100).I used wired before mostly without problems but was annoyed by the cables.My router is a Netgear WNDR3300 and I never had problems with it.The problem is that sometimes my wireless adapter just stops working and drops the connection.I use it since a few days, and it already happened several times.It happened especially when I was streaming videos to my PS3 (my PS3 is also wireless). It also happened while I was watching Youtube videos. When this happens, I need to unplug the adapter and plug it again. Sometimes, I need to restart the whole computer for my adapter to work again.Is this normal with USB wireless adapters? This is unacceptable to me.I want a stable connection.
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Dec 29, 2011
I recently found that whilst using my WIRED connections, web pages have been opening slower at times. My ping times to google.com usually is around 72-84 ms which I continue to get if I hook up the cable modem directly to the PC. As soon as I utilize the Linksys router, I start getting higher ping times anywhere from 72-300 ms. Firmware version is 1.5.01 which I recently upgraded to. I tried resetting and so on. Is there an older firmware version that works better? I'm currently running Windows 7 Ultimate 64-bit.
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Feb 2, 2011
I have a Linksys WRT110 wireless router for my desktop via a D-link DWA-125 wireless adapter. The OS is Windows 7 64 bit and I mainly go online to play games. This has been a while and every time I play games, which requires stable connection, I will get this lag (the ping goes as high as 600ms for every few seconds then goes back to normal).I tried many ways to troubleshoot and find no solutions. I updated firmware for USB adapter, power cycling the router and reset the router many times.
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Dec 20, 2009
I bought the WMP600N because Linksys and Microsoft listed it as 'compatible' for Windows 7 x64. My experience:
- unstable and weak connection
- pings to websites like google.com drops, average: 1 out of 3
- low signal, on the same spot my three years old HP-laptop with 'a build in wireless card' has full signal strength in Windows 7
- it works well under Windows XP (32 bit)
I am convinced that drivers for the WMP600N are not ready for Window 7 x64. Linksys (or Ralink, which developed the chipset), release a proper driver for the WMP600N.
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Apr 3, 2013
Region : Netherlands
Model : TL-WDR4900
Hardware Version : V1
Firmware Version : 121211
ISP :
after changing from a Thomson router with wifi to the TP-link WDR-4900 I find that the wifi is very unstable. The 2.4GHz is operating on the same channel as my previous router (channel 8 - which is the lest busy channel around my house), and none of my neighbours have wifi on the 5GHz band. Almost all devices in my home regularly have to reconnect to the wifi, both on the 2.4GHz as on the 5GHz (tested with more than 8 devices). Almost every 15 minutes I see a "wifi channel disconnected" message, 10 seconds later followed by a "wifi connected" message. the Wifianalyser app on my tablet confirms that the wifi signal drops once in a while to zero. I use the latest stable frmware (I read that there is beta firmware but I don't like to loose warranty). The stability seems to unrelated to the amount of traffic on the wifi network.
Will this be fixed in the next firmware of the TP-WDR-4900 ?
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Feb 8, 2013
If I send video file(overall bit rate is 17.5Mbps) to client with 2.4Ghz band, it always freezes and go repeatedly around 1 second interval. the distance around 10m away without any wall, open space actually.
But same condition with above, cheaper wireless router no problem at all. It happens only with EA4500. And there are no any parameters setting menu actually.
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Jul 23, 2012
I recently replaced my old WRT54G router with a E3200 router.
Unfortunately, ever since my wireless network is a lot more unstable than before. I very often experience serious lag spikes and drops in speed. Very often I experience serious lag for a couple of seconds after which everything returns to normal. I notice this the most in online gaming, but it is also noticeable while browsing the web. When downloading large files (e.g. steam games), the download speed also seems to suffer from this by dropping every now and then.
There are no connection drops however. And it only seems to affect the wireless network.
I have configured the E3200 router manually using the Web UI and is has been configured exactly the same as my WRT54G: i.e. only 2.4GHz band enabled with b/g/n, WPA2 security, MAC filtering on, no throtling/parental control/port forwarding, UPnP disabled. The E3200 is in the exact same place as the the WRT54G was.
Things I have done so far for troubleshooting: I used inSSIDer to monitor the wireless network and it's signal strength seems about the same as the WRT54G. I changed channels for best signal strength (there is only one other wifi network that seems to be configured as a dual channel N network; 3 other networks with very low signal strength) and have tried every channel.
I updated the fimware to the latest version (Ver.1.0.04 (Build 1)) and did a factory reset and power cycle afterwards.
I noticed that switching channels can account for 5-10Mbps differences in internet speed. Something I never noticed with the WRT54G. The lag spikes occur more often on some channels than on others. This seems not related to the speeds I get on the channel.
I really can't imagine that a router marketed as High Peformance router with superior speed and superior range is less stable than my old WRT54G router.
Is there something I can do to improve stability of this router?
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Jan 26, 2013
I have had my EA2700 for about 6 months now. Have had no problems until about a month ago. One night I could not get the router to connect to the internet. First thoughts were that the cable connection had gone down. When I finally started to trouble shoot I was able to confirm the cable connection is fine by connecting to the modem directly.
Out of the modem I am getting 14+ Mbps. (I only Pay for 10 So a plus there)
I could not get the router to connect to the internet. I ended up resetting the router and reconfiguring it. Ever since then I have been getting really unstable connection to the internet.
When I connect directly to the modem (cabled) I am getting a nice steady connection . When I add the router and hardware in I get a good connection only a Mbps or 2 drop off and a pretty steady connection. Then when I connect over WIFI I get a much larger drop off depending on if the device is a 2.4 or a 5
The connection is extremely unstable. The curve on the graph {URL} is very peaky and has extreme highs and lows. This is multiplied when running on the GHz (as my laptop runs on). My Iphone running on GHz. I can pull down 9 Mbps but the curve is still up and down. Iphone on GHz I barely get Mbps and it is extremely choppy on the graph.
I am able to back this up with my I PAD. I can only confirm the 2.4 number with the laptop as it does not have GHz radio in it. So every thing that us running on the 2.4 is getting poor connections.
I also suspect that the through put on the wired side is poor as well. I am unable to prove it as every test I run shows a good connection but netflix has been locking up and I have to restart what ever I am watching 2 to even 10 times a show. I need to do more testing to be sure the network or the devices are to blame.
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May 14, 2013
Just installed a refurb EA4500 this past weekend after testing it for a week. The regular wireless network is very stable, but not much faster than my single-band DLink DIR655. Guest network seems to drop out from two connected iPhones, and when the connection drops, you have to re-login and type in the guest password everytime. The linksys firmware is up-to-date( Linksys smart wifi)and so are the iOS on the 2 iPhones. Just to add, on my old DLink, the guest network comes up secured also, so when you type in the passcode, it remembers it next it comes in range unlike the Cisco, which requires login at a web interface.
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Dec 10, 2012
I had problem with my wirless network. My network had wireless controller 4402 (version 5.2) and some AP 1130AG and using power injector supply power for AP. I setup AP radio with 802.11 b/g/n 2.4GHZ. but my user complaint about 2 problem with the laptop distance AP 5 meter
- Speed of wireless card on laptop often change from 11 Mbps to 18 Mps or 36 Mbps and unstable.
- Ping from laptop to server had lost 20 % packet When I ping wired connetion to server this is recceived 100%).
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Oct 1, 2010
I have an NTFS formatted USB disk drive (Western Digital My Passport Essential Black 320 GB WDBAAA3200ABK) attached to the WRT160NL wireless router (Firmware Version 1.0.02), and I have video, picture and music files on the USB disk drive in three folders: Videos, Music, Pictures. Auto-scan is disabled, I scan the media files manually by clicking on the 'Scan All' button.
PROBLEM 1 The worst problem is that the router is very sensitive to files that can't be recognized by the router as media files. For example if there are subtitle files (*.str) between the media files, then strange and nondeterministic things happen: some valid media files are skipped and not included in the media database; some files included but the file names are mixed. The most irritating in the bug is that there is no log file, where you could find the problem, and so you never know which file cause the problem, and you have to browse through all the files hunting for the cause.
PROBLEM 2 When the router is in the process of scanning the media files, then the internet (WAN) connection often can't be used, although the router can be accessed and the status says it is connected to the internet.
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Aug 20, 2012
i have a little annoying problem with my E4200. V1 with the latest 04 fw. It seems, that after many hours of downloading at full speed (only one torrent at a time) the speed goes down, and up again, and becoming unstable. My max download speed is 1.5 Mb/s, and it can drop from that, to 50 kb/s, and then up again. and i have no internet access when that happens, but it only last 10-20 seconds and then its back again. Sometimes i get that yellow warning sign on the taskbar which says "No Internet Access" but not always.
Seems like its happening after many hours of downloading at full speed. im on the latest firmware, have tried different channels, 20 Mhz only on Channel Width, different names on the 2.4Ghz and 5Ghz channels.. i use the 2.4Ghz channel btw. Otherwise its stable, and i have had no problems while gaming online.
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Dec 25, 2011
I assign private IP for each PC within LAN. And DHCP is in charge of wireless connection since 192.168.0.100 for 10 clients. ,Web setup access is also disable for wireless connection.When a notebook connect to WRT54G via wireless. Private IP is always out of range and it could accesses web setup.What happen to my WRT54G ?
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Dec 1, 2011
I have a Motorola Surfboard cable modem with a Comcast account that is supposed to get "up to 15 mps". My desktop works gloriously, but my laptops and everything else hooked up to the net through my Media link Wireless N Router either run incredibly slow, or get kicked off completely.I've already had the router replaced one.
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Jun 15, 2012
The problem is that it always stays around 121-150mbps and sometimes 270mbps(beside router). here is my wireless settings on my router
router setting 1: [URL]
router setting 2: [URL]
network card setting:
802.11n channel width:auto
802.11n mode:Enabled
Ad-hoc channel:11
Fat channel intolerant:Disabled
Roaming aggressiveness :Medium
Throughput enhancement:Disabled
Transmit power:Highest
Wireless mode:802.11a/b/g
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Feb 16, 2013
Region : Hongkong
Model : TL-WDR4900
Hardware Version : V1
Firmware Version : 3.14.0 Build 130206 Rel.34701n
ISP : PCCW Netvigator
I have bought tp-link wdr-4900 for several days and encounter the following problems
1) nfs is not work, whenever I set up the nfs server (using hanewin nfs server), the media player fails to read the media file. (Problem does not appear for the previous ASUS n56u)
2) When there is large traffic rate (e.g. BitTorrent), the whole machine is very unstable, LAN and Wireless dies (SSID disappears, and LAN appears "ERR Connection" and "DNS not respond"), give me a feeling that the router cannot handle high traffic rate and the whole machine slows down and fails.
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Jan 14, 2013
Region : Iraq
Model : TL-WDR4300
Hardware Version : V1
have TL-WDR4300 router hardware v1 but when update to the latest firmware it became unstable and disconnecting so I had to return back to older firmware the new firm ware released 12/25/2012 and it is noted for TL-WDR4300(UN) V1 my model is TL-WDR4300 V1 not (UN) so what is different between the two
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Apr 26, 2013
Region : Hongkong
Model : TL-WDR4900
Hardware Version : V1
Firmware Version : 3.14.3 Build 130320 Rel.39025n
ISP : PCCW Netvigator
I have upgraded to the latest firmware which solved lots of problems regarding unstable wifi connection as well as BitTorrent / P2P transfers.But I also observed that when my BT is on (Transmission for Mac) at around 50KB/s upload and download, my network latency hikes up from some 30ms to 500ms which affects a lot on web browsing or other apps requiring Internet.My BitTorrent app is showing I am merely making some 20 peers connection so I am not convinced that is an ISP problem but it's more about the router.
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Jul 29, 2012
for about the last month my internet has become extremely unstable. It is fine sometimes, but for the majority of the time there is a decent amount of ping. There are also times where the internet will just crash altogether, requiring a modem reset, which only seems to fix the ping momentarily.
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Aug 26, 2012
About 3 and a half months ago my internet connection has been extremely unstable. It will be fine for 20-30 minutes and then will spike up to anywhere from 4000 to 6000 latency and give me a constant disconnect for 2-7 minutes. This connection is affecting every computer in the house as well as the playstation 3 that is connected by wi-fi. All the computers in my house are hardwired.
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Sep 8, 2011
I noticed some serious random ping spikes in online games and found that the connection between my Laptop and the E4200 is very very unstable. Sometimes it works perfectly fine but at other times my ping will spike each 5 seconds to three or even four digits and back to normal. I never get disconnected but playing is obviously not possible.
I ran several pingtests through pingtest.net and got everything from 15ms ping 3ms jitter to like 400 ping 300 jitter.
Eventually, I pinged the router (192.168.1.1) and got delays between 2ms and 300ms for both the 2.4 ghz and the 5ghz network. The 2.4ghz channels are fairly crowded but the signal is perfectly fine and stable. The 5ghz band is totally free therefore interference shouldn't be a problem i guess.
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Jan 30, 2012
We have Cisco SA520 and we want to use VPN to access the office servers from home. We have been able to configure the VPN server on the SA520 however the connection is very unstable.We use OS X 10.7 lion built-in Cisco compatible VPN clients and this is a typical output of ping from 3G mobile network to a server inside the office network. It works the same way also if I am trying to access from my home ADSL connection so the problem is not the instability of the 3G connection.
Some sample traffic sequeezed:
PING ns.svm (192.168.60.27): 56 data bytes
64 bytes from 192.168.60.27: icmp_seq=0 ttl=63 time=98.022 ms
64 bytes from 192.168.60.27: icmp_seq=1 ttl=63 time=76.934 ms
64 bytes from 192.168.60.27: icmp_seq=2 ttl=63 time=278.201 ms
[code]....
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Jun 29, 2011
I am currently experiencing an issue with an IPSEC Tunnel between a Cisco892-K9 (c890-universalk9-mz.124-22.YB.bin / Feature: advipservices) and a Checkpoint VSX R67.
After reloading the router the tunnel is stable, but afterwards we loose the connection to the LAN unexpectidly (max. time of the connexion is ~2h30).
In fact after a reload the first ISAKMP SA is well negotiated with conn-id 2001 and after a certain amout of time the connexion is lost always associated with this debug message =>
ISAKMP:(2001):error from epa_ikmp_gen_ipsec (QM_IDLE )
ISAKMP:(2001):Unable to generate IPsec key for 799280698!
ISAKMP:(2001):deleting SA reason "Death by retransmission P2" state (I) QM_IDLE (peer 194.X.X.X)
and so on ....
We supposed it was related to DPD messages so we deactivated the keepalive (no crypto isakp keepalive). We tried to play also with the ACL matching the crypto map (currently from local subnets to any), but still no luck.
When it is stable the ‘show crypto isakmp sa’ indicates a isakmp sa ‘QM_IDLE / ACTIVE), and when the problem occurs the active ISAKMP SA is deleted and recreated (in ACTIVE state) continuously : conn-id 2001, 2002, 2003, 2004 etc...…but still no access to the LAN.
My main question is to know if someone has already know the signification of the previous ISAKMP debug messages (along with the total debug message + crypto conf from the beginning of the problem) =>May it be a platform support (near 200 ipsec flow in use => most subnet to subnet flow, few subnet to host flows- 200 users on site) , compatiblity, crypto map acl …???
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Sep 1, 2011
I have recently built a new computer and now I am having trouble with my network connection. When I was done I directly connected it to my 2wire modem with the Ethernet cable.There was no connection until I downloaded the LAN driver from the CD that came with the motherboard [ASUS M5A88-V EVO ATX]. It worked for a few days and then the connection just started dropping. The trouble shoot in Windows 7 fixed it - but only for a while until it didn't work at all. Restarting the computer restored the connection and usually gave me about a few hours to work with, but a few days later all I had were a few minutes. Other than this computer I have two laptops [Windows 7] and a desktop [Windows XP] which the internet runs smoothly on when hardwired to the modem and I didn't have to install anything. Some messages I get from the trouble shoot are:LAC doesn't have valid IP configuration Default gateway not available Unidentified network?
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Feb 27, 2012
I've been having big problems with my Belkin router. The connection is often slow even after restarts etc. I'm not sure whether it's the line quality/broadband usage/router quality that's causing the problem. How can I pinpoint the issue?ISP: Virgin MediaBroadband: ADSLAnti-Virus: AVGI've attached the image and ipconfig text file.
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Feb 27, 2013
I work in a small office/production building and lately we have been having problems with an unstable connection. We are using a Meraki MR24 access point in our warehouse, the connection always starts out strong but sooner or later everyone will briefly lose connection and the AP goes away, then comes back and we're reconnected at excellent connection again.
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Oct 24, 2012
I have a dynamic VPN site to site between a Firewall ASA 5510 with ASA version 8.2(1) (firewall ASA have a Static IP 201.111.14.114) and a C870 ISR (the ISR have a dynamic IP). The tunnel and the conectivity in both sides is successfull, however each time that occurs a interface restart because the Internet link is unstable in ISR side the VPN tunnel does not going to UP STATE again
These are the ISR logs listed when VPN going to DOWN
*Mar 10 13:58:45.157: %LINK-3-UPDOWN: Interface ATM0, changed state to down
*Mar 10 13:58:46.157: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, changed state to down
[Code]......
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Aug 1, 2012
My laptop has a very unstable connection and I am completely stumped. I've monitored the ping and it is usually around 32-50, but it constantly spikes to 3k+ for roughly 10 seconds, it also disconnects at random intervals. I've tried updating the networking drivers, disabling firewalls and changes the preferences.
I have a Samsung Series 7 Chronos running Windows 7.
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