Major Packet Loss When Particular Computer Is Connected
Nov 28, 2012
I've been having an unusual networking issue lately, where everything runs smoothly apart from when one user's laptop is connected to the WLAN. All users on the network get something between 20% and 60% packet loss, only when this user's laptop is connected. I've made sure all the TCP/IP settings are reset to default, I've reset the router to factory settings, but the problem persists. This only came on recently, and I don't believe anything changed.
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Dec 12, 2012
i am implementing tcp as per rfc 793, i have one doubt, while sending first packet, if that packet lost means, tcp will wait for RTO and retransmit the first packet, and after got the ack for first packet, then only it will send second packet or without getting the ack for the first packet it will send second packet.
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Mar 29, 2012
My ping is 35ms my DLS at 45.6 Mbps and my Upload is 4.51 Mbps. My Problem is that i am losing about 60 to 90 percent of the packets on a pingtest.net.
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Aug 10, 2011
For about the past 2 or 3 months, I have been experiencing outbound packet loss at about the same time every evening. That timeframe is about 7 PM - 10 PM. This is most noticeable on Teamspeak 3 because of the voice disruption that other users report to me.
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Feb 19, 2013
I have recently switch internet to Time Warner. Since the day I got it, i have experienced random packet losses of 100%. I have called time warner and they are going to send a tech out. But i would like to know more about this before he comes. I have replaced the modem with a brand new one. Surfboard SB5101N from the one i was leasing from them. They both do the same thing. I have made sure all my Drivers are up to date. I have replaced the coax cable and Ethernet cable and ran my Anti Virus and Spyware program. It does it more during online game, I have reinstalled the game and was having no problems with the ATT Dsl i had before this.
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Apr 18, 2012
My workplace has a UC-540 attached to a cable modem, attached to the world wide web.
When we make VOIP outbound calls through the standard ISP, there is no auditory packet loss sympton; however, when we make calls to out sister branch through our VPN, we experience auditory packet loss symptoms.
I would think the VPN should only be affecting the encapsulation of the data. To my understanding the VPN packets and non-vpn packets all hit the router at the same time, and transport over the web in the same manner. Why would there be packet loss over only the VPN??
--Regarding QoS, if a standard layer 3 device receives a VOIP packet encapsulated in a VPN, do the QoS bits in the VOIP packet get acknowledged, or are they hidden by the VPN encapsulation?
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Dec 13, 2012
I'm having an issue with packet loss during the same time every day at 12:20PM. I checked scheduled tasks, ran wireshark, made a static ARP entry, and ran ping tests. The ping tests show packet loss only when pinging 1 DB server to 1 App server. When the packet loss happens everyone on the network connected to the DB gets kicked out of the DB. They are eventually able to reconnect but its annoying that everyday at 12:20pm they get kicked out. Ping tests from the DB to the Firewall stay constant. But when I ping from the App server to the DB it loses connection at 12:20pm and when i'm remoted into the DB server i get kicked out as well. It's like at 12:20pm the DB server stops incoming connections for some reason.
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Mar 3, 2011
3 days ago it worked just fine but not anymore I've run a packet loss test and the result is 100% loss. I don't know why. The internet is really slow, it is unusual. I'm using wireless network. Oh, I'm using windows XP SP3 (laptop) I am not really good at computer and I'm wondering if this problem is caused by virus, malware of something like that.
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Apr 5, 2012
I have a Windows 7 desktop (so it's NOT wireless) that is having problems with packet loss. Now, the modem is fine, I've tested 'pingtest' on some laptops and the packet loss is very minimal. I've tried reinstalling the drivers for the LAN controller, using a different ethernet cable, using the 'winsock' reset command, and I have no luck. This does effect upload times on YouTube, to where a minute long video takes an hour.
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Dec 15, 2011
I started using Windows 7, on two different computers. I get pretty bad lag spikes while using Skype and playing online games. They occur about once per minute and last maybe one second. There is a "Network Throttling" fix floating around the internet which I have tried, to no avail. I don't know much more about computers than a basic understanding, and am completely new to Win7.
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Nov 17, 2012
Pinging 98.137.149.56 and had 100% packet loss; this was suggested in another thread. LAN connected at 100 Mbps BUT cannot access Internet! Windows XP HP desktop; Belkin N Router; Optimum Cablevision - Modem Scientic Atlanta "Webstar"
I am using my iPhone to access Internet.
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Mar 2, 2011
We have a tandberg 6000mxp on a network without QoS. We see packet loss on the tandberg counters and NOT on the network anywhere. A network trace also showed no errors.
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Jan 25, 2013
But I have finally diagnosed the problem. When I try to play games like Combat Arms, Arma II /OA, BF3 and run a ping test on pingtest.net my ping is steady, and my jitter is fine but the packet loss is ridiculous! I will have a packet loss of 90-100% causing the game to be unplayable. But when I run this test playing WoW I have 0% packet loss, steady ping, and good jitter. I am completely lost on what to do, other than contact my useless ISP that will not know what to do. I am really frustrated by this and am not sure what the cause of this is or what to do. I have been researching for over a week and have no where else to turn.
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Feb 12, 2013
When I ping my video streaming host's IP address (the IP that they gave me where I can view my IP web camera's video stream), I get anywhere from 0% to 8% packet loss at various times of the day. They're claiming that there's no problem, that this is because this is a router and it's dropping ping packets due to "ping priority giving preference to more important network traffic."
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Mar 18, 2012
my local network another pc packet loss
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Oct 27, 2011
I had all kinds of packet loss and I was ofcourse suspecting my ISP. But then I tested pinging my internal interface and found that it has packet loss as well. I have about 10% packetloss to my interface with 192.168.0.254, I have the same thing from several different inside hosts. My inside rule is the implicit one, any, any. service IP.In the log I can see a teardown and build of the icmp whenever the packet loss accour.There is no packet loss pinging the outside interface from the internet.
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Nov 3, 2012
I recently moved from an old apartment in Downtown Montreal, to a suburb area, but still close to where I was before (10 km). I am using the same ISP provider, Videotron. The same speed. I was playing games perfectly fine before, but now something is really wrong. Whenever I join a server, my ping skyrockets up to close to 200, sometimes drifting to 130 but never going below... and often rising back up again.Keep in mind that I filter servers by their pings. I only join servers that display a low ping (although often I won't see any, when I refresh.. there they are). I'll see a server with 30 ping, join it, and be at 200. I'm mainly trying to play Chivalry Medieval Warfare.It's entirely unplayable. Not only is it impossible to properly time parries anymore, but I also get a lot of rubberbanding. I've tested the internet here, and the speeds are accurate. 10 mbps down, 1 mbps up. I am connected to a Linksys E1200 router. I've tried everything I can possibly think of.I went into the router setup, disabled the firewall, added myself to a DMZ, tried to forward every port for steam (although it didn't seem to recognize it as a program)... rebooted the modem, my computer, the router, tried a different Ethernet cable.. nothing is working. It's very depressing. Nothing has changed on my own computer in the move.
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Apr 21, 2013
My problem is that i have a packet loss of like 2% to 6%, which is a lot considering that i play a lot of Online games, causing lag spikes and net frozes.I will say all the information i can about my pc.My PC hardware hasn't been modified, so the manufactor page ( ) tells what is installed in my pc.About software, i need to find if this problem is software-based, my AV is Microsoft Security Essentials and i use MalwareBytes too.About how im connected, im connected via Wireless to a router. (dunno model, i just know its a encore router)
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Apr 2, 2011
For about 7/24th of the day it'll be fine. But the rest of the day it will be riddled with burst packet loss. For example when I'm pinging.It'll go "Done
Done
Done
Done
Done
Request timed out
Timed out
Timed out
[code]....
Due to how it's only certain times it happens and other times it's perfect leads me to believe it's my ISP.
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Jan 24, 2011
How do I fix packet loss on VOIP? Teamspeak, Skype, MSN Voice all have inbound jittery clipped robotic voice. Teamspeaks shows "total" packet lost, climbing to at least 20% with Speech packet loss 50-65% then I lose connection altogether. All other network programs (Firefox, streaming music, videos, online gaming) work fine.I have ATT DSL, using a Netgear Wireless G Router w/ built in Modem (model DG834G). The network has 1 attached device, my Dell laptop (which is usually powered off).The packet loss problem is identical on my desktop pc and laptop (both using the same network). Problem exists when nothing else is running, only Teamspeak (or another VOIP) I have replaced all wires, cables, filters. Power cycled modem. Problem exits with or without Port Forward.*running Windows 7 {64 bit}, AMD Phenom 8450 Triple Core, 2.11ghz [3gb RAM] Asus M3A78 Pro Motherboard
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Jul 1, 2011
I get 10Mbps download, and 1Mbps upload. I play on wire, not wireless!I have a WRT54G2 router, and I've had it working for around 2 years now. I've been gaming(Unreal Tournament 2004) with it and now-a-days I've been getting packet loss and it is super annoying. I keep getting owned during game play because I skip here and there and it lags sometimes. Also, the laptop upstairs that the family uses sometimes can't connect to the router, so I have to unplug then replug the router for the laptop to connect to the router. Is my router giving up? Its a G router, should I shift over to N anyways?
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Apr 6, 2012
I am connecting to a Wireless network, through a ZyXel ZyAIR G-4100v2 router. My problem is that I am experiencing very regular packet loss every minute or so. This lasts for around 5-10 seconds on average. I am running XP with the latest service pack. So far, I have checked out;Wireless Zero Config scanning of new stations (disabled that feature).Xirrus network scan (signal is fine and consistent). I am not suffering from any degredation in signal, the problem seems to be that the router is simply not allowing anything through at regular intervals.
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Jan 20, 2012
I have a Netgear DG834G v4 wireless router/modem, im experiencing a bit of a problem, when i ping google from my desktop which is connected via cable to the modem, i get a packet loss after about 15 seconds each and every time but when i dot the same from my laptop via wi-fi, well, there's no packet loss.. since i play most of my online games from my desktop, this is a bit of a problem for me..
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Nov 21, 2011
I am pinging a host from Nexus 7K. I'm losing every 200th packet when I'm pinging the end host. I don't see any issue with network connection.
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Oct 26, 2011
I have 2 Exchange 2010 servers and when I enable the DAG and start replication I see both servers NIC cards reach 100% utilization periodically. I normally don't see this on any of my servers but I figure what the heck it'll be really fast in completion. However, when it peaks at 99-100% for short bursts I see packet loss from other systems on the network.
A minute or two into it I start getting alerts of packet drops on the switch these are connected to (catalyst 2960S). It's not across the board but it's enough to wreak other havoc with processes running. I'm curious as to whether this is the 2 servers having a problem or is this switch not up to it?
I believe the last snapshot I took showed most of the active ports on the switch having a 40-50% transmit status when those 2 servers peaked, which didn't make any sense to me. Is there something on the switch triggering other ports to lose packets or is it broadcasting something it shouldn't?
In more detail:-I'm seeing immediate/more packet loss on the network from the 8 or so APC PDU's that are connected to the same switch at 100/half or 100/full (haven't looked into why that is yet some are coming up at half.
-Couple of sql servers were failing over because they could not reach network resources, timeouts exceeding a few seconds. Really just bizarre for just replication files.
Lastly - any way to throttle the throughput on the Exchange replication via powershell or anything?
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Jun 28, 2011
I´m having a problem/issue with my CSM. I have a WS-X6066-SLB-APC - Version 4.2(1), installed on a 6500, and for a while now whenever I ping the VIPs (vservers) I detect some packet loss (In 10.000 ping packets, I loose around 1%), and higher response times; If I ping the reals I see no issues, only with the L3 behind the CSM.
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Apr 22, 2011
My internet connection has suddenly turned really slow and pingtest.net tells me I have severe packet loss, which makes sense as nothing will stream or load properly. I'm running Mozilla Firefox (newest version) and have tried all the usual diagnostics and resetting everything?
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Nov 2, 2011
In my network i have Cisco nexus 4 switches those are running as redundancy and fault tolerance. I have mulitple VRF instances are running, when i tried to ping the gateway IP (hsrp Virtual IP) witch same VRF instance it is getting packet loss.
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Jan 24, 2013
about 4 weeks ago we started experiencing Packet Loss and High Pings while playing games. This affects our 2 PC's and our PlayStation 3 (Since we use them for gaming). We have contacted our ISP several times regarding the issue but each representative we have talked to has had different ideas of what the problem is. They replaced the modem twice which did nothing, so I then purchased 2 new Router's (DIR 601 N150 & DIR 835 N750+). Neither of them solved the issue. my ISP also says it isn't the Internet Cable that is causing the issue. My Download Speeds and Upload Speeds are right where they should be but the ping and the packet loss is the problem. I also contacted DLINK (Router Manufacturer) to see if they had and all we did was upgrade the firmware version and change the Wireless channels which also did nothing. I have plugged this PC into the modem with an Ethernet Cord and played games and all the issues were gone which leads me to believe that Modem and the ISP aren't the issue.
Things I've Tried:
-Resetting the Modem
-Testing each Wireless Channel on my Router
-Enabling and Disabling 802.11n and 802.11g on the router
-Changing the QoS settings
-Installing Software such as Gamebooster and Advanced System Care
-Disabling all Antivirus programs and Firewalls on the PC's
-Using a friends Modem instead of the Cogeco one
[code]...
OS: Windows 7 Home Premium 64-Bit
System Manufacturer: Acer
System Model" Aspire M5802
Processor: Intel Core 2 Quad CPU
RAM: 8GB
Graphics Card: AMD Radeon HD 7800 Series (7850 to be exact)
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Oct 3, 2012
For awhile now i been having speeds of 1.0mbps when it should be 54mbps at all times.
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Jan 18, 2012
I seem to be having packet loss with the E4200V2 which is upgraded to the latest firmware as of today, 1/18/12
The application is accessing a security DVR which uses a RTSP / RTP stream. Of course this requires certian ports to be forwarded in order for this to work. This works flawlessly with a WRT310N or a Cisco 871 Router so I know the port forwarding is correct.
With the E4200V2 it works intermittently, I can replace EV4200V2 with either the Cisco 871 or the WRT310N and there are no issues.
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Sep 16, 2011
I am having issues where different laptops are dropping packets when communicating to the WAP on the RV220W. I have placed 3 laptops directly next to the router so there is no chance for walls to interfere. From each machine 1 at a time I perform a continuous ping. Here is a quick output from one of them:
Reply from 192.168.0.1: bytes=32 time=3ms TTL=64
Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
Reply from 192.168.0.1: bytes=32 time=3ms TTL=64
[Code].....
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May 7, 2013
I have two routers, Cisco 3825 and 2811 connected via a p2p ethernet link. The two sides of the links have Huawei muxes with 100/ full duplex set on their interface. I am facing almost 40% packet loss but the supplier is unable to identify any issues at their end. We have tried setting different combinations of duplex and speed settings but no improvement. When set to auto/auto the interfaces are negotiating to half duplex and I am sure this is the cause of the packet loss. Also I heard of auto-negotiation on MUX ports but supplier confirmed no such settings but only 100 Full duplex. If the router iterface is negotiating to half duplex so I suppose there is some thing with the negotition problem with MUX and router port ?
On C3825 I have a Gig interface whileas C2811 has fastEthernet. I guess Gig interface should not negotiate ? Is there a way to pin point the exact fault to supplier ? Also is there work around for this?
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