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Questions tagged [packet-loss]

When one or more parcels of data, defined as packets, fail to reach their destination over a computer network

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8 views

How to troubleshoot VPN packet issues?

I'm a web developer (10 yrs), and am tech savy, but don't know a lot about networking, so please forgive my ignorance. I work from home, so I'm always on my company VPN. Over the last several weeks I'...
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18 views

Severe packet loss caused by throttling

My ISP insists that my terrible internet connection is being caused by throttling. Every technician I spoke has default responded this and I have reached the point of pulling my hair out in ...
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0answers
20 views

Seeing steady high packet loss on azure expressroute link

Looking for some help for a performance issue related to expressroute /azure . I'm seeing steady packet loss of 40% on the expressroute link which occurs every friday evening between 5pm to 5am the ...
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32 views

VMs not reaching devices on same subnet

I have a VM server that should communicate with IP cameras on the same subnet. I can ping both the servers and the cameras, but they can't ping each other. I can ping any device from the router (...
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0answers
17 views

OpenVPN Site2Site Connection lost on high workload

I have a problem with my OpenVPN site2site connection. On low traffic the connection is stable and everything is fine but if the workload increases the packet loss rate increases too and ends in a ...
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1answer
32 views

What hardware issue is causing my packet loss? Is it fixable?

My laptop got a nasty bump today. A bit of the casing broke, and a corner of the laptop (including screen) is 'bent'. Somewhat to my surprise, the laptop appears to be functioning close to normally: ...
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2answers
232 views

Why am I getting packet loss when pinging raspberry pis on subnet?

I have three raspberry pis connected together on a subnet via a hub. I've given them all static IPs and I'm using one main Pi to ping the other two Pis. Here is my setup: Once the main Pi starts ...
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1answer
499 views

Sending UDP packets seems to cause loss on incoming packets on different NIC

I'm running Windows Server 2012 with an audio streaming application that streams over UDP. Another application is receiving audio that's also streamed over UDP, but arrives through a separate NIC. ...
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1answer
378 views

Why a router used as access point is causing me problems

I have two modems/routers but was just using one for the entire home. Since I wanted to have Wi-Fi in the first floor as well I connected my second device to the first one with an Ethernet cable so it ...
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1answer
287 views

Cause of packet loss in my Rpi and wifi device?

I was working with the Rpi and i was trying to transfer some data from my wifi enabled device to Rpi over UDP. But i often experience packet loss. I don't know why, packet loss still present for ...
2
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1answer
279 views

Linux - Can I Duplicate, send, then and Deduplicate UDP packets?

I am transmitting UDP data across 2 Linux (Intel) based routers, and I am experiencing low levels of packet loss which are interfering with the application. Is there a way (ideally, but not ...
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0answers
162 views

Poor Upload performance on symmetric FTTP 100/100Mbps link

I know what I'm suffering is a "first-world" problem...I have it good, but not as good as it should be. [Moving here at the suggestion of the moderator in SE Network Engineering.] tl;dr; - I have ...
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2answers
1k views

How can I increase the performance of OpenVPN over a high packet loss network environment

I am trying to connect my laptop to a server in another continent, and it seems that the link is very unreliable (with about 58% packet loss when pinging). When using the VPN through a default ...
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0answers
344 views

VNC supporting VPN tunnel?

We have a number of users who have been remoting in via VPN and none have had any issues until now. One user is having an issue that we've determined to be due to packet loss or his connection ...
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0answers
33 views

Odd signal loss throughout my entire home. Cell phones, internet and cable TV

The family and I recently moved into our current home less than 2 months ago. Just got comcast/xfinity wireless internet, cable TV, and home phone. No problems for the most part. Fast download speeds. ...
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1answer
126 views

How is it possible to handle large packet loss?

I currently live in a dorm, and the internet connection is really poor here. The speed is not bad, but around 25% of the packets are lost (randomly). The management knows the problem, but they don't ...
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2answers
212 views

Intermittent Packet Loss

I apologize for my lack of knowledge when it comes to networks. Over the last few weeks, I've been experiencing off and on intermittent internet issues. I can go hours without anything then all of a ...
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0answers
84 views

How to find the cause of my Packet Loss?

I am using Internet from my University. All rooms and offices are connected with Ethernet cable through many switches. Many times I have packet loss, I think one switch or modem is problematic. How to ...
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0answers
3k views

Dropped packets in all Linux and Unix

I have a problem. I have motherboard by Supermicro – X11SBA-LN4F. There are 4 ethernet ports. In first port i have internet. In second port i have my local network. When, i write "ifconfig" or "...
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1answer
133 views

Apparently inexplicable packet-loss; possibly causing slow Skype connection despite speed-tests showing good up and downstream speeds at both ends

I have done a look Whois lookup on my IP Address which is returning [redacted by instruction]. We're currently connected via Skype so I know transmissions are sending; however, when my friend attempts ...
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0answers
420 views

Single TCP retransmission causes 15 seconds delay on wireless

I am having a strange problem which causes long delays in http requests (POST in this case) to my own web server. This occurs only if - a linux or Mac client is used (Windows is fine), and - the ...
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1answer
1k views

Packet loss in WinMTR test but not in PathPing?

I suspected some network issues with a host, so I ran both WinMTR and PathPing to test my connection to it. The results were entirely different; WinMTR reported ~75% packet loss on each hop (except ...
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107 views

How to find configuration that wil emulate specific network conditions with netem / tc?

We had our otherwise well tested application fail once it was deployed on a device connected via a poor wan connection. To be able to debug this we want to reproduce the bad network conditions in a ...
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2answers
700 views

Significant packet loss, ISP claims there's nothing wrong. What can I do?

During the day things are usually fine, but at night anything that requires bandwidth (I have a 30mbps fiber optic connection, though I don't think it's end to end fiber) or a consistent connection (...
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1answer
352 views

Packet Loss/High Ping with One Computer Seems to Affect Entire Network

I'm having an issue with my PC. I have a wireless router/modem combo box that was provided by my ISP and am having issues with a single PC on my network. The PC is connected via WIFI and often will ...
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1answer
1k views

Incoming packets drops when a lot of packets

I encountered a problem with my network. When I play online games that send many packets, my ts3 connection statistics show 25% - 50% packet loss. First game I noticed to do so is Space Engineers, ...
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0answers
534 views

Troubleshooting Packet Loss in my Home Network

I have a DSL subscription in my apartment and I want to connect a second apartment of mine in the same building. Here's the setup: I have a wireless ADSL router that was provided by the ISP: ...
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2answers
3k views

Is packet loss in traceroute a sign of speed throttling?

This connection has severe connectivity issues like webpage timeouts and slow transfer speeds. Its a wireless HSDPA conection which I am accessing using a USB Modem (Huawei E303c). Executing mtr ...
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0answers
662 views

Ping spikes and packet loss/connection drops to router

So I'm getting large ping spikes between my computer and router. I have ruled out the possibility of a faulty router as other devices on the network do not appear to get any service interruptions. I ...
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4answers
8k views

What can I do to improve DSL connection stability?

I am getting some pretty high CRC and FEC error rates on my modem. After many tests I am getting 1/5th or less the bandwidth that I should and I started looking into it. It seems I have high packet ...
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1answer
293 views

EasyBox Packet Loss, especially under pressure

the problem in itself seems very straightforward, but I can't find the cause. It started a few weeks ago, and ever since every device in the network experiences packet loss. If you just do casual ...
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2answers
717 views

Public network Wi-Fi connection problems

My friend and I have free public Wi-Fi at college. Her Wi-Fi used to work fine, and still does in the other buildings. However, for a long time now her Wi-Fi (which has excellent connection) won't ...
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2answers
1k views

What does a network packet consists of?

I know basic networking but I am not very good at it. Now I am calculating how many packets will be lost if I use UDP over IPv4. I can assume that the protocol overhead for data sent via UDP over IPv4 ...
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5answers
2k views

Packet loss on native Windows 7, but not on Mac, Linux, WinXP or VM'd Win7. What?

I am managing a small handful of newish Dell laptops and desktops that use similar ethernet hardware -- Intel I217-LM for the desktops and Intel I218-LM for the laptops. These all are running the same ...
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1answer
2k views

Home ADSL Modem Dropping Packets?

I know this is supposed to be a "pro" forum, but I'm hoping someone can help since my ISP isn't doing much to try and fix things. My ISP has given me a DSL modem / Router combo - a ADB / Pirelli P.DG ...
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2answers
978 views

Computer causes internet loss on other devices

I have a switch that is directly connected to my modem. attached to this switch are a computer, PS3, PS4 and a NAS. They all have been assigned static IP addresses. My problem is the following: ...
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0answers
28 views

Losing first hundred pings

My internet connection seemed slow, so I did: sudo ping -f www.google.com The strange thing is that I see I'm losing the first couple hundreds of pings, but after that it behaves as it should behave....
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1answer
542 views

OS X: how to make it reply to “ICMP time stamp query”?

As per another question, I'm using hping--icmp-ts to send the ICMP time stamp requests to debug asymmetric routes. It seems like my OpenBSD box generates time stamp replies by default without any ...
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1answer
425 views

Strange router behavior — packet loss, truncated HTTP responses

I am encountering some strange behavior with a new home WiFi router. Pinging outside servers (i.e. google.com, amazon.com) has 30% packet loss, and HTTP requests with wget only give me the first 1-2kB ...
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0answers
523 views

Mysterious yet consistent packet loss

A few days ago I started having strange problems with my Internet connection. It disconnected at seemingly random times, and I had to restart my router to bring it back up. I also noticed that it didn'...
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2answers
3k views

Where is packet loss occuring? (Interpreting MTR)

If MTR is showing something like: 1. 192.168.0.1 0.0% 2. 1.2.3.4 50.0% 3. etc That clearly shows that the packet loss is my ISP's fault, correct? But if I'm seeing: 1. 192.168.0.1 ...
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2answers
774 views

TCP Throughput versus Packet Loss

How does the packet loss rate affect the TCP throughput rate: throughput rate reduce exponentially with respect to loss increase or throughput rate reduces by the same amount as loss increase?
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0answers
325 views

optimise PuTTY on Windows 7 for huge & steady packet loss

There's a 25% packet loss between my connection and that of my server, and my server company doesn't want to do anything about it, since it's at one of their peers, not directly on their ...
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1answer
756 views

Troubleshooting “bursty” network traffic

I've been having a problem with my Internet connection ever since moving to San Francisco, and it's driving me absolutely up the wall. After using my network connection for anywhere between five and ...
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2answers
258 views

Is there any way to use my integrated laptop antenna together with an external USB antenna redundantly to reduce packet loss?

I am forced to get my internet from a slightly far access point, and as a consequence wifi quality is poor due to packet loss. Is there any way I can use both my laptop's inner wifi card and my ...
2
votes
2answers
6k views

How can I find the source of packet loss in a traceroute?

Whenever I ping my website, I get 5% packet loss consistently. However, pinging other sites such as google produce no packet loss. I'm really not fond of my webserver dropping packets, but I'm not ...
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1answer
722 views

IP checksum offload

I recently updated to Windows 8 and get alot of invalid packet transfers. It says "Ip checksum offload?" (Wireshark) and most of my packets get lost. The checksum is 0x00. I also updated my NIC ...
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0answers
631 views

What would cause different rates of packet loss between client and server in UDP?

If I've implemented a reliable UDP file transfer protocol and I have a file that deliberately drops a percentage of packets when I transmit, why would it be more evident that transmission time ...
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votes
1answer
2k views

How to interpret skype packet loss numbers?

I'm using a fairly bad internet connection at the minute, and have turned on the "Display technical call info" option. This shows a window with lots of numbers including both send and receive packet ...
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1answer
655 views

Unusable network, packet losses between router and NIC

I have this setup: Gigabyte P35-DS3P motherboard Asus NX1101 PCI network card (the one on the motherboard got fried a few years ago by a power surge) Asus RT-N16 router Windows 7 x64 I think the ...