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#1 2012-01-28 17:14:19

zyxon
Member
From: Hungary
Registered: 2010-08-31
Posts: 36
Website

Connection lost after finishing a torrent download

Hi!

Everytime i finish downloading a torrent i get cut off from the internet. Every conncetion that ran while the torrent was downloading is still up, but i can't open any new ones. What this means in practice, is that after the torrent finishes I cannot open a webpage or ping, etc. I do not get a error message, just a blank page with my browser trying to load the page.  This takes about 5-10 minutes, than its back up normal again.
My router is fine since I can still use the internet with any other device  while having this error on my PC. I only have this when using Arch.

How can I fix this? I'm now trying to lower the maximum connections in my torrent client to see how that affects my problem. Any help is appreciated. Thank you.

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#2 2012-01-28 17:16:18

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,797

Re: Connection lost after finishing a torrent download

Care to share which client you are using?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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#3 2012-01-28 17:17:48

zyxon
Member
From: Hungary
Registered: 2010-08-31
Posts: 36
Website

Re: Connection lost after finishing a torrent download

ewaller wrote:

Care to share which client you are using?

Sure, I'm using ktorrent, but this occured with every client I tried.

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#4 2012-01-28 17:31:14

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,797

Re: Connection lost after finishing a torrent download

I am a little out of me league here, but...   After your client closes, look at the output of sudo netstat -pl --numeric-ports  and see if ports are still assigned to your client.  Be careful posting the full output of that, it can reveal a lot about a system.

What does your network architecture look like?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#5 2012-01-28 18:00:41

zyxon
Member
From: Hungary
Registered: 2010-08-31
Posts: 36
Website

Re: Connection lost after finishing a torrent download

ewaller wrote:

I am a little out of me league here, but...   After your client closes, look at the output of sudo netstat -pl --numeric-ports  and see if ports are still assigned to your client.  Be careful posting the full output of that, it can reveal a lot about a system.

What does your network architecture look like?

Just checked, with the maximum connections lowered to 30, I have no open ports left open for ktorrent after closing it.. I don't really understand your second question

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#6 2012-01-28 18:13:29

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,797

Re: Connection lost after finishing a torrent download

As to the architecture, I was just trying to find out if you are using wired or wireless?  whether you have a local router? Can you administer that router?  whether you are behind a corporate firewall?  if you are using a DSL or cable modem?  maybe 3G or 4G wireless networks? Are you Bridged or NAT? Is this a real client or is it a VM?  etc...   
Just looking for clues.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#7 2012-01-28 18:22:46

zyxon
Member
From: Hungary
Registered: 2010-08-31
Posts: 36
Website

Re: Connection lost after finishing a torrent download

Oh, ok. I am using wired, I do have a local router which I can administer. I am not behind any firewall except if my ISP has one which I am not sure about. I'm using DSL. As I said it's wired (WiFi works well even if wired is stuck). NAT, and real client.

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#8 2012-01-28 18:51:48

kendallcschm
Member
From: New Fairfield
Registered: 2012-01-28
Posts: 8

Re: Connection lost after finishing a torrent download

When you say you have no ports left open are you saying the connections are closed or are they all still being used by the torrent client?


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#9 2012-01-29 21:07:58

zyxon
Member
From: Hungary
Registered: 2010-08-31
Posts: 36
Website

Re: Connection lost after finishing a torrent download

Under no ports left open I mean that they no longer appear in the list of netstat.

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