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.
View 2 Repliesfor 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.
View 5 Replies View RelatedI 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?
View 2 Replies View RelatedMy 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.
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.
i was looking to trace back a website from 2 months ago but not sure how to get into the history of the laptop,
View 1 Replies View Relatedi went to bed last night and my router was working fine, but today when i woke up my E2000 had no power it was still plugged in, do you think i fried it? i have only had it sence march and this has never happened before.
View 1 Replies View RelatedI can't seem to find out what this means. Every 6 months or so, my 7204 locks up. I can't even get to it via the console port and I must reboot to access it. I noticed this alarm in my logs.( ASSERT CRITICAL PO1/0 Threshold Cross Alarm - B3) I've looked on-line but can't pinpoint it's meaning. Looks like a flapping interface but might be something else.
View 6 Replies View RelatedMy Motorola SB6121 DOCSIS 3 modem is connected to a Medialink n-band router. Sometime in the morning (usually between 7am and 9am, the router loses the ability to see the modem. I can access the router's control panel, and I see 0.0.0.0 for WAN IP, Subnet Mask, and Gateway. Primary and Secondary DNS server are both blank. Connection Mode is Dynamic IP.I lose the ability to access the modem's control panel directly (192.168.100.1), even though the PC I use is hardwired to the router. So, I unplug the modem, unplug the router, wait, plug in the modem, plug in the router, and everything works again.I've had more than twelve service calls. Every Charter tech looks at the line, puts in boosters, takes out boosters, replaces splitters, and seems to only look at signal. I've BEGGED Charter to let me speak to an engineer, because my suspicion is that it's something to do with the DHCP server.
I did, by the way, replace EVERYTHING.I have had 5 different modems...same problem. I have had 5 different routers...same problem, including a modem/router combo.I've tried different brands, too.I've disconnected all wifi devices from the router, and rebuilt my PC's operating system. I've even unplugged the refrigerator, because one Charter tech claimed it was "upstream noise."I've been online only a few times when the system actually goes down. What I notice in the router logs is this: [code] So at 9:34, no ranging response - T3 timeout, followed by Unicast Ranging Received Abort Response;
then the Cable Modem Reboot due to T4 timeout, and the system time goes to 1/1/1970 at midnight. No ToD.
The last piece of information: Charter installed a second modem as a "test." That was originally in the same room. A month ago they did another line from the box directly to the test modem to skip the splitter on the house.That modem shows the same problems, EXCEPT -- not perfectly in sync. I might see the same error, but the time will be a few minutes and seconds off. And sometimes I'll see the errors, but the modem won't go down.Sometimes the first modem goes down, sometimes the second. I'm accustomed to a router "healing" itself when the modem goes down.It might be off for a bit, but then will re-establish. This Medialink doesn't do that. It forces a physical restart every day. There are other outages too, and all I get from Charter is "the signal strength is good."
I have been using the E4200 router with few issues for the past 5 months. I have the latest firmware installed and have 1 pc running Windows 7, a sling box device and USB storage drive connected in the rear and 7 wireless devices.
Over the past week, others in my household have been complaining of not being able to connect wireless. The other day, the connection quit for both wireless and wired connections. I thought it had something to do with my ISP (Comcast), and after I made a direct connect from my modem to my PC, the problem is the E4200. After unsuccessfully troubleshooting, I unplugged the router for a few hours.
Trying a few hours later, I was able to reconnect all connections. However, that lasted for a day and has not been able to connect. I did a reset and when going through the setup process, it says that it cannot connect to the internet. The only time I have any lights or activity on the internet port is when the router is booting up and then it goes off. The rest of the ports are working properly. Likewise, the link light on my modem shows no activity when connected to the E4200. The only connection I can make is to the browser utility.
I am now using another wireless router until I can get this resolved.
We have 3 sf-300 series switches in Layer3 mode deployed in different offices. We have found that approximately every 2-3 months at all 3 locations users experience a serious reduction in bandwidth. Only after rebooting the cisco does the problem go away and we're okay for another few months. some setting/feature that may be contributing to this? We are only using several ports and 1 static route on each switch. We are not using any of the bells and whistles on the switch. 2 of the switches are using the original firmware, whereas the other is using the newest firmware. Maybe this is just what we should expect from a Small Business switch?
View 18 Replies View RelatedI 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
View 4 Replies View RelatedSo 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.
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.
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.
View 1 Replies View RelatedI 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.
View 3 Replies View RelatedWe 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]....
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?
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
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.
View 2 Replies View RelatedSince a few days I've installed my Sitecom 300N Repeater to extend the wifi signal at my home.I named my repeater the same as my wifi UPC modem (Cisco EPC3925), so the PC will see 1 connection instead of 2. I also turned off the DHCP server on the repeater (not sure what it does, but it was recommended when I was goggling around).fortunately I'm experiencing a lot of trouble. Although I can connect to the repeater, the signal is not always stable. Many times my connection speed is as low as 3 Mbps. When I quickly turn the power off and on it instantly jumps back to around 40 Mbps and stays like that for a few hours/days.It's very hard to debug this problem because after resetting the the repeater is doing very good until it slows down or even dispersers after a few hours.
View 4 Replies View RelatedI 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.
View 1 Replies View RelatedI 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 …???
My desktops _usually_ connect, and then the connection will drop/go slow(14400 slow)/give that little yelow triangle on top of the wifi icon.First i had an edimax wifi PCI, now i have a trendnet wifi PCI. They both do the same thing.If i connect my HTC hero and start internet sharing, it works very well, and is stable. My ethernet works fine as well. It is like my computer is immune to PCI cards?I have tried with different wifi APs now, but its still the same.I have a zyxel adsl modem, and a linksys wifi AP hooked up to that. I noticed, that when my desktop is connected, the zyxel will get some kind of overflow from the linksys. It says "client reached max number of sessions per host" It's like my desktop is killing the network. I have tried many things. Drivers, fail safe, registry cleaner(I know), killing all unnescessary program, switching the PCI ports, but none of it seems to work.
I had my laptop running connectify (access point app) and it actually worked fine, but today it won't connect to that either.I'm going to create another partition on my harddrive, and install fresh windows 7 on that, and see if it does the same. But even if it doesn't I _want_ to find out what is causing this instabillity.When i try running the network diagnostics, it says DNS error, or that the router is fail. But my laptop works fine.Also, when doing speed tests, my laptop gets normal speeds, and my desktop is VERY slow DL, but normal UL ?In speed tests my desktop is very slow, but stable, but during the test, my laptop will first go like 2 mb/s - 3mb/s DL and suddently BURST up to like 64 mb/s although i only have 10 mbit line? It's like its buffering or something. Very weird behaviour, but working fine.And no, i do not have torrent programs or whatever running.Some says that i shout try and change wifi channel and bands, and avoid "mixed" mode, but none of it works. Always the same problem.ATM. my computer can't connect to any wifi at all. It keeps having the yellow triangle.
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.
View 3 Replies View RelatedI 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.
I don't know if this because buggy firmware (i updated to V1.00.16) or there something wrong with the device but if i set radio band to AUTO which enable wide-channel, my wireless connection become unstable when i ping to the modem, i got 200ms - timeout randomly
my family notebook that on other side of room connection also become more worst , ping to the modem (192.168.1.1) timeout so often
the connections seems better if i set radio band to standard - 20Mhz channel even though it seems WAG54G2 have more stable wireless connection (i replace it because the ethernet port dead) i also tried to change the channel, but the issue still persist, it seems the default is the most stable (channel 9 for wide, 11 for standard)
should i RMA the product as i just purchase last week? or it just because the bad firmware ?
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 ?
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.
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?
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.
View 3 Replies View RelatedI 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]......
I've had two 932Ls for a year and they work fine. Both installed trouble-free and have been used with motion-detection wirelessly. I often go straight to their local IPs in my browser to make any changes to settings etc (avoiding myDlink). I just bought two 930Ls (don't need/want the IR-function on these) and tried to install them. Process went seemingly smooth but once the camera was installed and wireless, problems started to crop up. As I saved settings in the web interface, I would get 404 "page not found" errors. Refreshing would make it work again...sometimes. More often than not, I cannot reach it through the web interface and the camera reads "disconnected" in D-ViewCam. It usually works on myDlink though. i've checked all the network and wireless settings and they are identical to my 932Ls. The connection is just unstable for some reason. The problems are apparent in the web interface and D-ViewCam which also means I can't trust the motion detection and emailing function. It is also NOT visible in my Windows 7 network environment, whereas the two 932Ls (and my entire Sonos network) do show up there.The 930L is running firmware 1.04 and the 932Ls are running 1.02. I know there is a 1.06 available but before I try that I'd like to get your views on this problem. Could it be a faulty unit? I don't want to fight through this problems - if it persists I'd rather return the cameras and buy two more expensive 932Ls and just turn off the IR in the interface. Or is this a known issue with the 1.04 firmware?
Even writing this right now, the camera suddenly popped back up on the web interface inexplicably, without me doing anything. and back up on D-View Main Console.