I have a Cisco 1841 router which stops functioning sporadically. You have to manually go do hard reboot on the router before it starts working properly.When it goes down, you cannot ping its internal interface (from the LAN side) not its public interface, it seems to go down quite regularly.Where do i start to diagnose, is it hardware failure, or config issue. Nothing has changed as far a the config goes lately.
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I have a cisco 1841 router which isn't able to boot properly from its IOS. it always prompt me on ROMMN.
Here it is:
System Bootstrap, Version 12.4(13r)T8, RELEASE SOFTWARE (fc1)
Technical Support: [URL]
Copyright (c) 2008 by cisco Systems, Inc.
PLD version 0x10
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I am having issues with frequent bgp flaps on the Cisco 7200 series router from past 1 week. I have raised a ticket with ISP but couldn't get any resolution from them as the flap is for about 2min.When ever we see BGP flap, we are not able to ping the remote end IP, Also at that point we drops on the interface connected to ISP.
View 1 Replies View RelatedAt our house we have Fast Access DSL through ATT. We are getting very frequent disconnects and lags. We have multiple devices running off of a single DSL modem/router. It has wireless and wired connections available. Our wireless devices disconnect as frequent as our wired devices do. We have called ATT many times. They have had us replace the DSL filters and did a line test outside our house which came back clear. However, when they run a line test while I am on the phone with them, they say they detect multiple errors on the line. We have replaced our DSL modem with a new one as well. It is a NETGEAR VersaLink Four Port Ethernet Wireless Gateway, Software VER:06.04.12. The self-diagnostics on the Modem come back clean with no problems detected. We get static on our phone line frequently as well.
[URL]
In the technician readout part of my modem I also see this:
1Manufacturer NETGEAR
2Vendor ID b5004946544e449c
3Model NumberB90-755025-15
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I have Cisco 7613 on my edge(MPLS Backbone). CPU utilization is shooting to 100% at frequent intervals. When I tell vendors managing device they tell that it is happening due to one of my server(connected on Fast ethernet port of 100Mbps) generating heavy traffic. My questions are:
1. Can a router of 720Gbps capability be choked due to traffic generated by 100Mbps link?
2. Interrupt CPU process utilization is well below 10% at the said time. BGP router process consumes most of the CPU. Does this means that server in question is generating too many routing updates?
3. Is there any way that I can limit routing updates on a particular link?
4. how to check which link is causing more CPU utilization.
I have multiple RVS4000 in a VPN ipsec Site to site to a ASA5505. The connection is fine most of the time.But the VPN connection randomly drops, not all the devices at once but they all do at a different time.
View 1 Replies View RelatedI am trying to configure MSTP on Layer-2 network at work. We have multiple switches connected on Wireless point-to-point links with redundent links.MSTP is configured with multiple regions. All the servers are located in RegionA and other regions are connected to RegionA via multiple links.
There are 3 SG-300-10 switches in RegionA --- SwitchA_1, SwitchA_2 and SwitchA_3.One of the simple regions (RegionB) has a single SF-300-08 switch (SwitchB) connected to SwitchA_2 via port e7 and SwitchA_3 via port e8. Hello Time, Forward Delay and Max Age are at their default values of 2, 15 and 20 respectively. The link between SwitchB (port e7) ---- SwitchA_2 is the primary link with cost 200,000 and the link between SwitchB (port e8) ---- SwitchA_3 is the backup link with cost 500,000.
The log on SwitchB is shows in the table below. As it is seen from the table there are frequent topology changes for very short duration (1-4 seconds) before the topology settles back to the configured one. (Primary link forwarding and secondary link blocking). During this time there have been no link failures reported.Same thing is also observed within RegionA (SwitchA_1, SwitchA_2 and SwitchA_3 are connected to each other).
How to stop these frequent topology changes? The topology changes within RegionA causes a lot of PPPoE sessions to reset and re-establish.Is there any way to find out what triggers these topology changes?
21474646232011-May-24 13:54:15Warning%STP-W-PORTSTATUS: e7 of instance 1: STP status Forwarding21474646242011-May-24 13:54:15Warning%STP-W-PORTSTATUS: e7 of instance 0: STP status Forwarding21474646252011-May-24 13:54:15Warning%STP-W-PORTSTATUS: e8 of instance 1: STP status Blocking21474646262011-May-24 13:54:15Warning%STP-W-PORTSTATUS: e8 of instance 0: STP status Blocking21474646272011-May-24 13:54:13Warning%STP-W-PORTSTATUS: e8 of instance 1: STP status Forwarding21474646282011-May-24 13:54:13Warning%STP-W-PORTSTATUS: e8 of instance 0: STP status Forwarding21474646292011-May-24 13:54:13Warning%STP-W-PORTSTATUS: e7 of instance 1: STP status Blocking21474646302011-May-24 13:54:13Warning%STP-W-PORTSTATUS: e7 of instance 0: STP status Blocking21474646312011-May-24 12:53:22Warning%STP-W-PORTSTATUS: e7 of instance 1: STP status Forwarding21474646322011-May-24 12:53:22Warning%STP-W-PORTSTATUS: e7 of instance 0: STP status Forwarding21474646332011-May-24 12:53:22Warning%STP-W-PORTSTATUS: e8 of instance 1: STP status Blocking21474646342011-May-24 12:53:22Warning%STP-W-PORTSTATUS: e8 of instance 0: STP status
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I just got Charter cable internet and decided to purchase my own cable modem instead of paying 5 dollars a month to rent one. I got a D-Link DCM-201. I know it is a little old but it was brand new/unused so I figured it would work out well. Ever since we got it hooked up every few hours we lose internet connectivity. The power, cable, and status lights are solid green and the Ethernet light is blinking green. The only fix I have found for this is to power cycle the modem. The problem is this happens about once every 4 hours...having to reset the router every few hours is making having cable internet a much more painful experience than it should be.
View 7 Replies View RelatedI keep losing connections to the internet and getting a couple of different messages that the Gateway IP address is invalid. There are times it happens every few minutes and other times I can go for a couple of days without it. Also, we have to have satellite internet which has such an inconsistent speed. Is it the internet speed inconsistency or the 4 year old Belkin N Router?OK, so I tried to copy the information from the CMD window, but I can't get it to work. After I got the information and right clicked and clicked "select all" then what. I couldn't copy it. I can't find my way back to the instructions.
View 3 Replies View RelatedThe internet connects fine, but every couple of minutes it will disconnect for a couple of seconds. It's not a big deal when browsing, but it's disastrous when downloading big files or playing online games.What I've tried so far:
-Resetting the modem. No change.
-Reconnecting the modem/router completely. No change.
-Replacing the main splitter. Slight change, but problem came back eventually.
--Original problem came with the tech's 2 way 5-1002 mhz spliiter.
--I tried replacing it with a 3 way 5-1000 one. The modem on 7db and cable on 7db. It worked fine for a couple of days.
--Problem comes back today. Moving the modem to any of the 3 outputs doesn't fix anything. Moving it to 3.5db actually causes a short timeout every minute when I try to ping yahoo (as a test).
--I've also tried a 2 way 5-900 mhz splitter. It was the worse one of all.
Other info:The internet went down to the entire block at the start of the year. No one knew this of back then so we made a call to comcast, and they scheduled for a tech. A couple days later, we decide to get a new modem from the comcast center just to make sure it wasn't our modem. Some problems with activation prevents us from knowing if it was. We get back online somehow the next day, which is also the same time the tech came. He decides our numbers are weird and adds in a splitter for the internet and tv (which leads into another splitter for each room), and an amplifier for the tv. In the middle of this, another tech stops by and tells us the entire block was down and he said he fixed it now, he doesn't stay long. The first tech finishes installing everything and leaves. All is fine for a couple of days, until a week later and we start experiencing frequent disconnects. We've tried calling comcast again, but they say the connection is fine on their end and the problem is with our router. When I ping the router and the modem directly, there are no dropped connections. It's only when I try to ping anything on the internet when the problem pops up.
Have an SRP527W that I've had a couple of years,
Model:SRP527W, ADSL2+ AnnexA, 802.11n ETSI, 2FXS/1FXOVersion ID:V03Hardware Version:4.0.0Boot Version:1.1.17 (Jan 4 2010 - 21:15:46)Firmware Version:1.01.29 (002) Mar 29 2013ADSL Firmware Version:0.78.0Recovery Firmware:1.01.20 (011)Setup Wizard Version:20110728.00
As indicated in the subject, wireless users are finding that it is either unattachable (shows up in the list but fails to attach) or if you manage to authenticate and get in, it's painfully slow or simply drops out. Security is WPA-PSK. Only noticed the issue after a couple of Windows 8 laptops came into the household, but the problem still seems to be there when they are off so not sure if they are connected in some way or not. Updated to the latest firmware - no change. Wired connections are fine and when it's initially restarted, so is the wireless, seems to happen sometime after wireless services are restarted. Only the one Wireless SSID, nothing fancy, max users around 5, all on laptops or the odd pad. I changed channels done narrow wide etc, (using mixed mode - some Wireless N laptops some Wireless B/G. Nothing seems to make any difference. No log entries until the Wireless system is restarted, doesn't require a reboot of the router, just a SUBMIT of the existing wireless settings to force it to restart.
We recently converted autonomous 1131APs to LWAP. We have some 802.11b clients that were associated to these APs and they worked fine. Ever since we converted them to LWAP, the clients frequently disassociate and it causes alarms on these wireless clients which are used as monitors.
WCS shows the client disassociation and re-association and it says the roam reason as "unspecified". It associates to the same AP and keeps the same DHCP client address etc. I tried setting a static IP on the client but that did not work. We verified the PSK settings and they all match between the clients and the controller. [code]
- Small Home-Office network based on a Cisco WRV210 VPN Router connected to another WRV210 in a remote location.
- The WRV210 provides 2 WAP-protected SSIDs, one for the office network and one for visitors
- Wireless channel is set 5 channels away of the closest networks (using inSSIDer)
- There are about 12 wireless devices, 4 connected to the office network the rest to visitors. Not all devices are connected at the time of failure. All wireless devices use DHCP which is set to last 1 day and provide 100 IPs.
- The wireless devices are 1 desktop, 3 notebooks (all clean), iPads, iTouch and Nook.
- The failure symptom is that almost daily, and most likely around the same time, no wireless device can connect to any of the SSIDs unless the router is power-cycled. During the failures, which we have witnessed first hand, there are no apparent reasons: no new SSIDs, now SSID in close range on the same channels, nothing we can easily observed in the network in terms of connections or unusual activity.
- A weirdo also presented by the WRV210 was that its web pages were shown erratically. That was corrected by downgrading the firmware from the latest to previous version.
We have used a loaner Linksys router WRT54GC with only the visitor Network on it and even though the situation is not as frequent, it has happened already a couple of times.The WRV210 is out of warranty and discontinued, so we get no support from Cisco that is worth paying for.
I have a new deployment with a Cisco 5508-50 controller running 7.0.220.0 code and 35 AIR-LAP1262N-A-K9 access points. Current legacy clients have trouble connecting and after connecting they may or may not drop off and have trouble connecting again.
View 16 Replies View RelatedI have problem with RV120W router, device reboots very often ( up to 3-4 times during working day ), firmware is up to date ( 1.0.4.10 ), last week I decided to use "restore the factory defaults" unfortunately problem still exists.
Router is working in small office, there are 3 PC and 3 VOIP phones ( connected via LAN ) and 1-2 devices connected via wireless ( smartphones )
I've tried to view some logs but unfortunately no luck, can see some errors/warnings in dashboard ( see attached picture ) but cannot see more details ( log configuration wrong ? )
Additionally sometime I can see that CPU utilization is 100%
I am running XP pro. I have checked thoroughly for viruses/malware/etc. and everything appears to be clean. I have up to date drivers for NIC's, have cleared all temp data, done basically everything that the first tier Time Warner Cable(my ISP) tech support people will tell you to do as they read from that frustrating script we're all too familiar with and have had to deal with time and time before, including resetting modem and router, bypassing router, etc. etc. et bloody cetera.Ran several pings to a variety of servers and noticed ping spikes every 10or so seconds into the 300-600 range from an average of about 20-30ms.
View 5 Replies View RelatedI've recently bought an Actiontec V1000H gateway from Telus because my previous gateway burnt out. It seemed to work fine at first, but then I started getting disconnected at random. The only way I have found to fix this issue temporarily is to ipconfig /release and /renew.
View 5 Replies View RelatedI have moved into an apartment with 4 friends of mine. We all own HP 6515b Laptop running Windows 7. We connect to the internet through a wireless router. Our connection's name is LINKSYS and is WEP.Once i have connected to the internet, it will continue to work fine for a while. After some random time, it will disconnect.(The computer stays connected to the wireless modem, but computer shows NO INTERNET CONNECTIVITY (in bottom-right taskbar))Then in 5-6 seconds, it will start working again... The only change that is visible is that the exclamation mark on network disappears. The computer remains connected to router for this whole time. Initially we thought it was a problem of our ISP. But later we found out that at a time not all users face disconnection.So at a particular time, it is possible that only I cannot open webpages.
View 9 Replies View RelatedI am running Windows 7, Time Warner Cable is my ISP, I am using a Netgear wireless router, and a netgear wireless card to access the signal
The problem started a week ago. While playing online video games (Battlefield 2), I will get a message on my screen telling me theres a problem with my connection. Sometimes it will only freeze up for 5-7 seconds, and sometimes it is up long enough to make me lose connection to the server.I am not having ping problems, the server is not kicking me for that.All background programs are closed, ive tried restarting everything I have thats related to internet and my computer.
We have two 3845 routers set up using HSRP at two locations (4 routers total) connecting inside to a pair of ASA 5520 (Active/Passive failover) on each side. These links are used for internet access and they work great under normal operating conditions - they fail over and fail back without issue. How ever, two weeks ago our operations guys started a new data replication procedure going across these links via an IPSec tunnel created between the ASAs. This seems to have created a situation where the IP SLA tracking is not be able to receive the ping back from the upstream router on the originating side. [code]
I have our SIEM set up to notify me whenever the router logs a State change and I got about 10 a day
The modem checked out and was all good, the splitters are brand new and the line is apparently fine.This left the router as the issue. We had a Netgear router and attempted to replace it with a Linksys router.The firmware on both routers have been tested both old and new firmware.This happens to all computers/laptops connect to the network I do not receive a message stating that I was disconnected from the network, the internet simple cuts out for a little while and then comes back in.Cox says that they are 100% certain it is not on their end, nor is it the modem.The disconnects occur at random (there is no specific intervals). They last anywhere from 30 seconds to 10 minutes.
View 8 Replies View RelatedI have been experiencing drops in my wired internet connection and a google search brought me to your forums.It seems to disconnect more often either during a call on my voip phone (a snom) or shortly after - as if a surge of usage makes it drop out?
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I am using a desktop with a Netgear WG111v2 dongle to connect to my cisco linksys router.Basically my old modem died which was connected to a wireless router so we replaced it with a cisco linksys router and ever since the change ive been having difficulties connecting to internet on my desktop where as the the rest of the laptops in the house have had no problem. In the begining the desktop would always say its had limited connection the the network and such i couldnt connect to the internet but disconnecting the router several times and restarting the computer several times eventually the computer would have full internet access through the network without disconnecting at all.
A few days later the computer starting connecting to the network and gaining full internet access usually without turning of the computer and restarting it although i would disconnect from the internet every now and again for a minute or so and reconnect automatically this would happen more frequently when using Skype or msn messenger extremely frequent when using skype and especially when in a call.ive updated the driver of the wireless dongle to the latest version.my desktop is running vista while the laptops are running windows 7 and mac osx or whatever.ive also download a free version of avast and given a full scan of my computer without finding any threats.
I have a DIR-655 and OVERALL like it -- but there is one HUGE flaw.
I have set up several MAC address-based rules/schedules to restrict the times of use by my kids. FOR THE MOST PART these work fine (all clients on wireless). BUT at random intervals, all of the PCs with these MAC-based rules/schedules in place suddenly lose their internet connection (i.e. get blocked by the router). This does not happen to me or my wife (neither of our laptops have MAC-based restrictions in place for them). A reboot of the router reestablishes connectivity for the blocked machines. This reboot is something I find myself doing daily -- sometimes multiple times per day. I have verified that the latest firmware version is in place.
we have a pair of 7609 routers working in Active Standby mode. The version of routers are :- Cisco IOS Software, c7600rsp72043_rp Software (c7600rsp72043_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRD4, RELEASE SOFTWARE (fc2)
Quiet frequently we are getting High CPU load problems on our router and this load comes down below 10 % automatically.
I am attaching the Show tech support for your kind consideration.
Similar issue was reported yesterday as well for which i have attached SH tech suppot.
My VPN connection is dropping every few minutes for a few seconds at a time over VPN on the E3000. It wreaks havoc with the applications that require a constant connection.
View 3 Replies View RelatedI purchased WRT54GH wireless router back in 2009 and it was working fine except for past 1 month, wherein the Internet Connection was being disrupted 15 - 20 times in an hour. I thought it could be fault from ISP end; however after investigation by ISP we found the fault was not from ISP as, when Wireless was unable to establish connection with the DSL Modem it was failing but when tried to connect laptop with the DSL Modem it worked fine (Wired connection). I did try the Settings mentioned in an earlier post to change the UPnP and the Beacon Interval etc. This however doesnot seem to work as the internet has been disconnected almost thrice since then. (Approx. 15 - 20 mins). When the router is unable to connect to internet I restart the Wireless Router and the DSL Modem. After restarting, the Internet connectivity works fine.
Below are the Advanced Wireless Settings from Wireless Tab:
Authentication Type: Auto Shared (Default: Auto)
Basic Rate: Default (Default: Default)
Transmission Rate Auto (Default: Auto)
CTS Protection Mode: Disabled Auto (Default: Auto)
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Beacon Interval: (Default: 100 Msec, Range: 20 ~ 1000)
DTIM Interval: (Default: 1, Range: 1 ~ 255)
Fragmentation Threshold: (Default: 2346, Range: 256 ~ 2346)
RTS Threshold: (Default: 2347, Range: 0 ~ 2347)
New E4200v2 router, latest 2.0.26 firmware. Reboots on its own <or> locks up and requires power recycle 3-4 times a day. More frequent if I attach a USB drive to USB port. Reset to factory, only using as a router (no USB drive, no printer sharing, no TimeMachine backups, etc.)Still locks up or reboots 3-4 times a day. I need a reliable router that does not reboot so often.
View 5 Replies View RelatedI'm using WAG120N, but suddenly Days back I am experiencing frequent disconnection after every 1-2minutes. After extensive Complains to my ISP (MTNL) they were unable to rectify the problem.Attaching the System Log of WAG120N. [code]
View 9 Replies View RelatedHaving several issues w my E1200. For quite some time I have had intermittent loss of internet connection. This was somewhat true even before I got a wifi router. & it has continued. Recently it has been even worse & I'm not sure if it is my isp, my cable modem or the router. ISP came out & checked & said signals looked ok, although modem is old.Now i find out that the version of Cisco Connect that i had been using is incompatible w Mountain Lion so it won't work now. & newly downloaded dmg files say they are damaged (or that app has been modified or damaged--I'm not in a position to tell which but same results after I downloaded a 2nd time).
I have been having more frequent loss of internet connection at home. & when I click on the wifi icon to check, it shows it looking for networks. Also it has not been uncommon to see that it has switched to my guest network.Why would it switch to my guest network? What is the difference between the 2 besides the fact that I guess the guest network doesn't have access to everything on my regular network (which right now is only my iPhone, but may get wireless printer).Also when it shows the lists of networks that it "sees" my guest network does not show a padlock icon so what does that mean? It does have the default password.
Also because I had no idea that Cisco Connect was not compatible w Mountain Lion I didn't even think to check for upgrades before I upgraded to Mountain Lion & now I can't open Cisco Connect. Shows unsupoprted OS. & I'm also stalled trying to update the firmware for the router.I'm really beginning to see why it was cheaper than an Apple Airport Express. Even at a very low hourly rate, the lost time spent when this has not been working right has not been worth what I saved on the purchase price.
I have a Cisco/Linksys E2500 router that I have had for over a year and it has worked without issues for over a year. However my wireless ISP just switched my CPE from A Mikrotik wireless radio to a Ubiquiti wireless radio. As soon as they did this my PPPOE sessions from the E2500 (acting as my PPPOE client) start disconnecting and reconnecting every few minutes causing major problems with my internet and voip connectivity when it looses connectivity every few minutes.
The strange things is if I connect my much older WRT54G router as a PPPOE client (with the same exact PPPOE configuration), it works just fine and I don't have any PPPOE disconnects.
I upgraded to the latest firmware on my E2500 and nothing changed, it still disconnects my PPPOE sessions probably close to 50 or 100 times an hour.
I'm thinking it's some sort of compatibility issue between the Ubiquiti Nanobridge Radio CPE and the E2500 router acting as my PPPOE client. Also another thought was that perhaps my ethernet port wasn't negotiating speed/duplex correctly on the E2500.
Is there any way to hard code the speed/duplex on an E2500? I can't seem to find any spot with that setting.
I have an EA-4500. Unfortunately I often have to hard-reset it:
- every time I update the firmware (last time I updated to 2.1.38.138827 via Cisco Connect Cloud)
- sometimes whenever there is a black-out
The first time it happened upon the automic firmware update which released Connect Cloud. In such cases, the router stays with the white Cisco logo on and no other lights work (i.e. the ethernet lights on the rear side of the router are off). The only reset procedure working is: unplug Internet cable, press reset for 30 secs, turn off while keeping reset pressed, wait 30 more seconds, turn on again always keeping the reset pressed.
I've tried to turn off for 2 minutes but it doesn't work. The strange thing is that the above reset procedure does not always work, sometimes I have to do it like 10 times before the router Cisco logo light starts blinking on and off (like breathing).
Besides this, which is very very annoying, I'm satisfied with router functionalities and performance.
A friend bought an Inspiron 15R 5520 earlier this week & is experiencing poor signal strength & frequent drop outs. I took my Inspiron 15R 5110 to her place, connected to her wireless network & had no problems at all ... good to excellent signal speed & no drop outs.
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