Extremely high amount of recieved packets

CraptacularWill · May 24, 2014

Lately my home network has been having latency issues and all of the computers in my home are having a hard time loading videos, playing games, browsing the internet etc. I have done virus scans and system scans but have not found any cause of these issues.

http://imgur.com/SxPypnr

The picture above is what has me concerned. All I did was open toms hardware and start typing this question and I have received over that many packets. No other computers in my home are currently on and my system is the only machine on. Is there any answer to this problem? If there is any information I can provide please let me know. Thanks very much!

Pinhedd · May 24, 2014

CraptacularWill :

Do you have a gateway-router in place between your PC and your modem?

CraptacularWill · May 24, 2014

I have a router/modem, a Cisco dpc3825

Pinhedd · May 24, 2014

CraptacularWill :

Are you running something in the background that connects to the internet? Peer-to-Peer software can generate a lot of traffic

CraptacularWill · May 24, 2014

I don't have any torrenting software or other peer-to-peer software running to my knowledge

http://imgur.com/fl1yMzl

That is all the processes I am currently running

Necr0v · May 24, 2014

Download Wireshark and see what kinds of packets are being sent/received.

http://www.wireshark.org/

CraptacularWill · May 24, 2014

I downloaded Wireshark but I am not sure what I am looking for, I did take some screenshots however

http://i.imgur.com/mif8Xaj.png

This broadcast cluster keeps popping up every couple of seconds

http://i.imgur.com/EEnKzrY.png

These lines showed up when I went to imgur.com to post my findings

Necr0v · May 24, 2014

That's not right all those ARP broadcasts, so that sequence from 192.168.0.0 to 192.168.0.255 happens ever few seconds?

Sounds like something funny happening with the router and it's ARP table. Try power cycling it (turn it off/unplug if for a few minutes and back on).

Also, those dumped TCP packets when you went to upload the image to me seem like a lot of noise on the line somewhere that's corrupting them, or again it's something funny with the router...

Try the restart and see how you go!

CraptacularWill · May 24, 2014

I unplugged my router for about 10 minutes and when I look at wireshark the results seem to be the same

Necr0v · May 24, 2014

Hmm...

Does you computer send an ARP response when it gets the request for it's IP address? (so assuming the computer you're using has IP 192.168.0.3, when the router sends an ARP broadcast for 192.168.0.3 does you computer send as response to the gateway?). If it does, does it then continue to request this IP again later on?

I think it's something funny to do with your router, it shouldn't be doing that. You could try a firmware update on it, or see if you can borrow another router from a friend to try. Have a look in the the router settings to see if you can find anything interesting...

Other than that I am sorta out of ideas, was the network all fine then one day starting behaving really slow even though you hadn't changed anything?

CraptacularWill · May 24, 2014

This problem started a couple days ago when I noticed whenever I went on twitch.tv or youtube my ability to stream videos was very weak as the amount of time to buffer a video was extremely long compared to maybe a couple weeks prior.

http://imgur.com/EEKQDLg

I just did a netstat and I am not sure if this looks correct either, what is with all of these 127.0.0.1 addresses?

Necr0v · May 24, 2014

That netstat looks fine, they are all just local host connections (which is normal).

Necr0v · May 24, 2014

I'd be looking at problems with the router or your line from the ISP.

Ping google or another computer on your subnet, what's the RTT?
Do a speedtest http://www.speedtest.net/

CraptacularWill · May 24, 2014

I turned on my laptop and pinged its IP address

http://imgur.com/2J85yMu

CraptacularWill · May 24, 2014

Here is my speedtest results aswell

http://www.speedtest.net/my-result/3520047046

Necr0v · May 24, 2014

Right.

That speed test looks fine, however those ping values are waaay too high.

Are they wired or wireless connections? Even if they are wireless I would still be expecting 1-2ms response times. 183ms is ridiculous for a local network.

I would definitely say it's something wrong with your router. Update the firmware and if that doesn't fix it then try and get another to test...

CraptacularWill · May 24, 2014

How do you update the firmware on a router?

Necr0v · May 24, 2014

If you have a third computer get that and try pinging your laptop, which would rule out your desktop (just to be sure) and confirm it's something with the router

Necr0v · May 24, 2014

With the firmware I'm not entirely sure as I don't have that router. But it will be somewhere in it's configuration settings I would imagine.

http://www.cisco.com/web/consumer/support/userguides2/4021196_B.pdf

Check that user manual, it may help!

Necr0v · Jun 7, 2014

How did it go? Did updating the router fix it?

Extremely high amount of recieved packets

Reputable

Champion

Reputable

Champion

Reputable

Honorable

Reputable

Honorable

Reputable

Honorable

Reputable

Honorable

Honorable

Reputable

Reputable

Honorable

Reputable

Honorable

Honorable

Honorable

Share this page