Cisco WAN :: 2911 Stops Responding After A Period Of Time
Nov 2, 2011
I have a Cisco 2911 router with 4 T1 connections. Two are set as a multilink and the other two are for two other locations. The router will run fine, but after a month I cannot ping the gigabit ethernet 0/0 interface. I would have to manually reboot the router to get it to respond again. Before I noticed a lot of interface discards which would shutdown the 2911 and a manual reboot would be needed, but for this time it isn't the case. Where would I start with this the memory and cpu usage are fine.
Here is the config:
Current configuration : 2905 bytes
!
version 15.0
[Code].....
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Nov 26, 2012
We have a VPN 3000 that we use to connect. We are recieving reports that some of the users are connected but after a set period of time they are disconnected. Is there any changes that I could look at in the VPN 3000 that could point me in the right direction.
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Apr 25, 2012
Every other day and sometimes everyday I have an issue where my network slows down in one area at around the same time of day 12:00pm. I am using Solarwinds and I don't see anything significant showing up.
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Sep 14, 2012
So, I just upgraded my mobo/cpu (Z77A-G45 and i5-2500k) and I'm having an issue with my connection as it seems to drop every 5 to 15 minutes constantly and have no idea what exactly is wrongThe kicker is my old mobo did the same thing and I had to do something in win7 to fix it (not sure if it was the drivers or what) but I just can't remember what exactly.
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Oct 14, 2012
I have a Cisco 3845 with the archive command configured:
archive
path tftp://x.x.x.x/$h
write-memory
time-period 60
The archive command works with the execution of the write mem, but with the "time-period" doesn't work.This is the show version of my 3845:
NTP_Server#SH VER
Cisco IOS Software, 3800 Software (C3845-SPSERVICESK9-M), Version 12.3(14)T7, RELEASE SOFTWARE (fc2)
Technical Support: [URL]
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Thu 23-Mar-06 01:59 by pwade
[code].....
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Aug 11, 2010
I have just bought an E3000 router when my old router died last week. I am having two problems:
1. The data rate slows down after a period of time (long message trail elsewhere)
2. I cannot see everything on the network.
I have several Win 7 computers, two win xp computers, three NAS devices (linux based), and a printer sitting on the network, along with two switches to cope with all the traffic (not to mention iPods, iphones etc.)With my old router, I couold see everything plugged into the network from my main Win 7 computer. (note: the win 7 network map does not always work, but the windows explorer window of the network always showed everything).With the E3000 router, I can only see 1 or 2 of the devices on the network. If I reboot the router, then sometimes all of the devices appear on the windows explorer window (sometimes not)I am running a workgroup (not a domain) and i am not using win 7's homegroup because that will not work with the non-win 7 devices.Is there a setting that will see all of the devices in Win 7 (either on the router or on the computers). I suspect it is a router issue as it worked with my old Zyxel router.
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Oct 26, 2011
I have WRT54G2 router. All settings are more-less default and the behavior is following.You start up the router. If you do not connect wireless device within 10 minutes, then you have to restart the router.You have assigned IP via wifi, and when you connect cable device to the router, the wifi PCs are disconnected.
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Sep 28, 2012
I've bought a "WAG160N v1.0 Annex A" almost 2 years ago. I never used it's wireless feature untill we moved our house. Now it's like 4 month I'm using its wifi feature and I've got to admit I'm really frustrated by its functionality!
For months the modem just dropped wireless connection constantly in various time periods. Somtimes it went like 2 days without any problem but some other times I had to change channel every 15 minutes for it to get back working. And yes it didn't get fix until I changed the channel, otherwise clients had to wait several hours for a 50/50 chance of reconnection. Now It's two days the changing channel trick no longer works. I tried all channels and even put my notebook next to the modem but no luck. The notebook sometimes connnects to the access point but disconnects after a few seconds. Somtimes it doesnt even detect the SSID of my WAG160N modem. Some friends suggested that the wireless hardware of my modem is broken and no longer works but I'm eager to know if it is broken why is it still broadcasting and sending signal.
I've tried everything from upgrading and downgrading firmware to turning on and off the modem several times and changes modem position. And even tried the G-only 20MHz mode.We are at a very crowdy place. Using inSSIDer I could pick about 15 other access points. Only few of them are using Wireless-N, most of them are using Wireless-G.This is the inSSIDer diagram of my WAG160N modem from a client: [code]
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Apr 2, 2013
After upgrading our Cisco MSE to 7.4, the appliance does not stay connected to the network. Once the appliance is restarted, layer 3 echoes occur for about 2 minutes and then stop. The only way to get it to respond again, is to restart the appliance. Again, after a few minutes, it stops responding. I've checked the switch, and there is no port security set up on it. I've checked ACL's, and other potential culprits to no avail. The MSE interface is set up, and the device is configured.
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Sep 29, 2011
Whenever I try to play an online game like Warcraft 3, the router stops responding to my computers sent packets. While still in the game, if I try to connect to a website the page isn't found. However, soon after exiting the game, I can access websites again.
The entire time while I was having the problem, I'm shown as still connected to the internet (not even showing the yellow ! sign for limited access). I ran a ping test to google.com while experiencing the problem and it said it could not find it. I checked the status of the connection, and it appears as though my computer is still sending packets normally, but the router is just unresponsive.
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Sep 21, 2010
I reconnected 4 laptops today on 2 different WAP4410n APs. The user will let me know if they get disconnected. Yesterday I even reflashed the firmward on them. Also in order to reconect to one of the Waps I had to cycle the power.
The laptops are different One is a Dell Latitude c840 w/ Links wireless card and the other is a IBM t41 i believe.
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Apr 15, 2012
I have two MWR 2941's in a lab environment awaiting deployment in a SAToP environment. They are both running the latest IOS, mwr2941-adviprank9-mz.151-1.MR3.bin. After being up for about 4 days they both stop responding to telnet attempts. I do not get a reject message - it just goes to a blank secreen with a flashing cursor. The only way to fix it is to reboot. I read that an older IOS had a similar bug on the MWR1941 but I cannot find anything about the 2941 having issues such as this.
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Sep 21, 2010
Just bought 2 of these (wish I had seen this thread before). They shipped with the latest firmware already on them, so must be a very recent manufacture. I am having the exact same problems as above. It seems to be almost exactly 24 hours for me and the access point stops passing traffic. At first the latency goes very high (2200ms - 3800ms) right before it stops passing traffic. You can still ping the access point from the 802.11 side for a while, but nothing from the wired side, it just goes braindead. Once I was able to get the management interface up over the wireless while it was in this state and rebooted from the management side. It did not solve the issue, I had to unpower it and restart it (PoE Powered). I have only configured one of them due to these issues. I think they are going back. Here is how the access point arrived (yes, I just rebooted again for the 8th time).
Hardware Version:Rev.12Software Version:2.0.0.5Local MAC Address:00:13:60:FF:AF:F0System Up Time:0 hour:34 min:35 sec
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Mar 21, 2013
I'm facing a peculiar problem while accessing the switch (regardless of the mode - L2 / L3) once I connect a WiFi router provided by the ISP (Local make). The Switch stops responding on the web based console as well as ping. The network remains up but hosts' stop responding to ping packets to each other too. Only way I get control of the switch again is by rebooting it.
Switch is operating at its default IP: 192.168.1.254 and the plugged in router has a hard coded IP of - 192.168.1.1. I've taken a cable from the router (from its Ethernet port) and I've plugged it in to the router.
Just for the sake of it I've plugged the router cable in the link ports too but the switch stop's responding.
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Feb 26, 2013
I recently installed six of the WAP4410N v2 models, firmware 2.0.4.2
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Sep 21, 2010
After a day or so it just stops responding. I recently bought 3 of these to my office.
Running 2.0.0.5 etc.
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Aug 26, 2012
I bought a pair of SG200-08 switches a month ago and noticed that after a couple of weeks (give or take) the web interface stops responding (today being the 2nd time this happened). I am on v1.0.5.1 of the firmware on both switches. I can ping the switches just fine. I've run a port scan against then showing that port 80 is open. When I browse to either switch using IE9.0 or Chrome (v21) both show page loading however it remains blank - eventually the browser times out. I've tried multiple machines (just in case of port blocking) however always the same result.
To correct this I power cycle the switches and the web interface starts working.On the switching side, both seem to be working as there doesn't isn't any network impact (from what I can tell) however not being able to access the web interface is very irritating, not to mention making me wonder what else isn't working.
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Sep 21, 2010
I have 2 of these in a Bridge between 2 buildings. Cisco support replaced them with 2 BRAND NEW units after 6 weeks of waiting, that do the same thing. Spent so many hours on these turds it is insane. the thing goes down with the wind, tinker with it and maybe you will be up for a few hours or days then back to down again. Thinking it has something to do with the firmware or a power saving thing. Works great when it is up though. I am still trying stuff to get it to work stable. To much money invested in them now to start from scratch but they wanted budget equipment in place and not Cisco Aironet.
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Jun 5, 2012
I have an asa5505 with software version 7.2(3) that randomly stops responding. The firewall sits in front of a public facing webserver that handles a significant amount of traffic.I was wondering that would happen when the asa5505 reaches or exceeds the 4000 connections per second limit... i.e. would this possibly explain why my asa5505 stops responding and requires a power cycle in order to start working again. when it "crashes" it does not respond on either the outside or inside interfaces.
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Sep 10, 2011
How to fix our LMS 4.0 high CPU issues?. It takes lots of resources and also some time stop responding.
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Sep 21, 2010
With over 45,000 views, something must be wrong. Like many of the others here, we can't work out what's wrong with our network and why the cisco 4410n behaves so badly.
Our experience is just like everyone elses. At some point in time, mainly between 1 day and 1 week, the router just stops responding. The problem appears to be on the LAN side, as quite often when it fails, the wireless is still active and clients are associated. Some time ago I was Cisco certified, so I have had faith in Cisco products. I also sold them for a living, which made it a natural choice, but I am struggling to come to terms with my purchase here.
I had tried:
All the latest firmwares from March until now (including the latest) Full resets of the device, including "reset to factory defaults" Pegging the autonegotiate to fixed 10/100 Changing channels on the wireless (although as mentioned, it appears LAN side issues)
This thread has given me different views. Other sites also talk about changing beacon settings, but I'm not sure that's the right way to go.I would consider syslogging the results and getting extended debug happening, but when the problem happens and the device hangs, LAN is lost so the messages are also lost.
I find it hard to believe that so many people can have this problem and no one at Cisco can reproduce the fault. So, here's a pretty simple network for Cisco to experiment with which clearly has the problem:
Flat GBit network
Dlink DGS-1016D 16-port GB switch (unmanaged)
4-5 wireless clients (mainly iPhones & iPad)
The volume of traffic is low - no huge file transfers. The expected uptime is between 3-6 days. As a matter of interest, I also tried POE to drive it using a TP-Link injector. The device worked perfectly, but the problem did not seem to be affected.
It might be heading towards time to log a call on this. I was hoping the vast number of existing callers would have given the support staff enough to solve the problem, but it appears Cisco is none-the-wise on the fault, let alone the solution.
As a matter of interest, maybe a good interrim solution would be for Cisco to use the watchdog timer to ping a known address and perform a soft-reset if the address (on the local network) did not respond after a period of time. This atleast would stop people having to crawl under desks and pull plugs to reset the device as it has no power switch.
I have a "Generation 2" device.
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Sep 21, 2010
I have the same problem with my two WAP4410N connected to my Cisco SRW2024 Gigabit switch.It appears that there would be a time where the PHY's between the WAP and the switch are hung.The lights on the Gigabit switch are constantly flashing.
It is until I disconnect and reconnect the network cable between the WAP and the Gigabit switch that the problem is momentarily solved. Then it seems like another high traffic usage of the WAP will cause the connection to hang. This solutions is totally unacceptable as I am not willing to open my wiring closet every time to fix this hang. Also I've lost precious data between my client and server because of this hang!
I don't think the problem is with the Gigabit switch as I have other Gigabit devices connected to it and I never get them to hang like the WAP.
I saw on the release notes (although the firmware has not been posted) that there is a problem with the WAP Gigabit PHY. From the release notes, it seems the firmware will have an option to take down the speed of the WAP Gigabit PHY from 1000BT to 100TX. This would be a shame if this is the final solution as one main reason for purchasing the WAP4410N is its Gigabit capability.
Being a networking PHY designer who had also worked on other Cisco products, I'm surprise that this problem had not been resolved in their qualification and interoperability lab.
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Feb 26, 2013
We have a situation with 20 4410N's They are connected through a 2960 switch. They runned for about a year with no problems. We use the WiFi system with 10 cisco wireless ip phones, several workstations (5-10) and a few mobile devices.
Three weeks ago we took 10-15 iPads in commission (almost equally divided over the AP's), since then the trouble started. Several accesspoints stop randomly responding a few times a, day. We updated to the latest firmware (2.0.4.2), but that did not solve the problems.
Were using 3 SSID's WPA2 encryption and fixed IP's for the AP's. If we can't get a hold on this we have to replace all the AP's by other ones.
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Feb 15, 2012
Is there any plan to release an updated firmware for 521w? Or is this done? I currently have .24 firmware but still having lockup issue.
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Feb 26, 2013
My internet works fine but after a random period of time, usually 20-30 minutes the internet stops responding. I have ran a diagnostics test using the Intel PROset/wireless tools program and it states on the ping test that there is no response from the default gateway and the DHCP server.
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Nov 5, 2011
We have a Cisco 1811 which is running a number of different services. Let me try and explain how everything is working first.
On routed port 0, we have a statically configured fiber connection which routes a public /28. No BGP, etc just default routes. The /28 is divided into a two /29's, once of which is routed to Vlan3.
On routed port 1, we have a PPPoE DSL connection, with a single static IP.
Vlan1 is a 192.168.1.x subnet
Vlan2 is a 192.168.2.x subnet
Vlan3 is a y.y.y.x/29 subnet(the routed subnet)
Vlan1 and Vlan2 PAT the static fiber IP(not the other /29) along with the DSL. The other /29 is used for a few static NAT translations and SSLVPN
There is a zone based firewall in play, as well as a few route-maps to redirect traffic out certain interfaces on the inside.
The problem is, the fiber IP randomly stops responding to ping/ssh, however I can ping the interface IP assigned to Vlan3 from the WAN. DSL never loses connection in this manner.
I can normally reestablish "normal" connectivity by connecting to the DSL and bringing down the fiber and routed vlan in a specific order.
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Feb 4, 2013
I have two 3560G 24p switches, connected to each other via two links in Etherchannel. From one of the switches i retrieve SNMP info about port status and traffic for these two ports. That works great, until i pull out random cable. The switch responds with ifOperStatus = 2 and traffic drops to zero for that partikular port, as it should. But a some of seconds later it stops responding to my snmp reguests for ~ 5 seconds. That causes problems as my watchdog sets an alarm as it thinks the connection to the switch has been lost. (It checks switch uptime is increasing all the time)
If I set a delay on the watchdog on my monitoring system of 15sec, it works. But it ain't that nice to have a delay of 15 sec if the connection really is lost.
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Jan 17, 2011
Bought a Cisco RVL200 (latest firmware included - I checked), and I've set it up to serve as the gateway/firewall for my home network. I also intend to use the VPN functionality when travelling as well as serving up content from a web server behind it. All of this seems to work the way it is intended (after quite a bit of fiddling).
The problem however is that if it comes under any sort of load it simply stops responding - physically it looks alright with the expected leds being lit, just as it would when functioning normally. It does not display the management interface, nor does it even respond to ping (which it does when it works). If I start up a bittorrent client on any of the machines on the internal network and add a torrent to something popular like Ubuntu Linux it'll usually start downloading and then after 5-15 minutes the RVL200 will have stopped responding. Tried adding QOS settings to limit the computer running the client or downprioritize this type of traffic, but that does not seem to have any effect.
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Mar 30, 2011
My router is running the stock 1.21 firmware and it has been fine for almost a year before the wireless suddenly stopped working. I reset the router and restored my previous configuration. After the reboot, the SSID is visible and I can connect to it but there is no internet connection. Also the router becomes unresponsive, i.e. timeout trying to access the router configuration page. After trying out different settings it seems that enabling WPA2+AES is the cause.In the mean time, I am running an open wireless network and everything seems fine. Is the hardware faulty? I am reluctant to update the firmware because of a negative experience with another router (same model).
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Feb 9, 2013
I run a AirPort Extreme router. I have my F9K1106 range extender set up and working. works awesome. I get home from work the next day and the range extender seems to fall asleep , it won't pass any traffic. I power cycle it and its back up and running. this happens everyday no fail for a week now.
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Aug 18, 2012
I am trying to set up ADSL and WiFi in a country home. I have bought a DLink DSL-2640 modem-router for this. The device is connected to the ADSL, everything works fine. The device has a WiFi AP capability - I have set up the WiFi and I am accessing the network from 2 different iPads, 2 PCs and an Android phone. After a few hours of work I begin to notice that one of the iPads is taking to long to load pages - it even can't load the router's web interface. This goes on for 5-10 minutes or so, then it passes away. Same stuff happens to Android, but rarer. PC has this problem occasionally also, but rarest of all.
I am assuming that this is a problem of the device - ADSL and WiFi might be too much for it. I got a dedicated WiFi router (TP-Link WR740N), connected it to the DLink and turned off WiFi on the D-Link.
Same stuff happens. After a while the Internet stops responding - I can't load the router's web interface. Goes on for 2-10 minutes and passes. WiFi is functional, I can disconnect and connect a device, device obtains an address through DHCP.
I updated both devices to the latest official firmware. I tried switching WiFi channels, switched the router to g-only mode. EM interference is very unlikely since it's a country home and there are no wifi networks around.
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Jul 29, 2011
As of two days ago my DIR-655 seems to have stopped loading webpages every 10-30minutes for periods of up to 5-15 minutes, as in they the reloading icon will constantly be circling and the webpage remains blank, no error or anything until it says failed to load on my web browser (tried multiple browsers such as Safari, Chrome, IE and Firefox). This problem occurs on every computer on my network, laptops (both Mac and PC) and desktops. When this problem occurs all lights on modem and router seem to be normal no signs of anything going down but I originally thought that this affected wired and wireless but I seem to have narrowed it to culprit being the wireless. When connected to the PC I can browse for an indefinite amount of time without the webpages failing to respond, however when I connected to WiFi through Airport on a Macbook Air my webpages start to begin failing to load around 5-10 minutes of browsing which affects all computers connected to the network (essentially all computers failing to respond to the internet during this outage).
Interestingly when this problem occurs, if I am connected to Skype or Aim it will stay connected and I can still chat with people but I will not be able to sign onto AIM if the problem occurs before I sign on and I try to sign on during the outage. If I am streaming a video from justin.tv or ustream it still continues to stream during this "outage".I have the revB of the DIR-655 and have tried resetting the modem, turning off the firewall, upgrading firmware to 2.03NA from 2.01NA and setting the MTU to 1400 (default 1500) with nothing working. I am using Time Warner Wideband ISP and have connected the modem directly to my PC and for the 30minutes or so that I tested the web browsing it seemed fine and did not have any errors.
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May 8, 2012
I have configured multicast (ip pim dense-mode) on two 2911 routers that are connected by a Multilink (3Mbps) Wan connection.The configuration work fine for awhile and sometimes all day but at some point one of the Multilink interfaces stop passing multicast traffic.I perform a sh multilink 1 on the interfaces and one interfaces show the multicast packets incrementing and the other does not, it just stops.The only fix for this is to hard reboot both routers and the multicast traffic begins to flow once again.
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