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In short I have next issue: Torrent downloads the files with perfect speed (full internet channel - 2Mb/s). But youtube, appstore and anything other services or sites downloads slowly.

I suspect that some virus or maybe service or something else is using my internet channel.

So question is: What soft can you advice me for detect service or programm which is using my internet? Maybe something like WireShark but not so complicated. Thanks.

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Questions like this are not on topic for Stack Exchange websites. You are going to find most programs like WireShark, complicated, if you think WireShark is complicated. – Ramhound Oct 24 '12 at 15:44
I can reformulate: what soft exists except WireShark? – Vadim Oct 24 '12 at 15:50

closed as off topic by EBGreen, Dave M, ChrisF, 8088, Oliver Salzburg♦ Oct 24 '12 at 16:54

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2 Answers

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Open cmd.exe as Administrator and type netstat -a -b -n. It will show you active connections and listenig ports on your computer with PID of program. In taskmanager you can find process by PID. Try to close all programs and run this.

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Thanks, it is very good advice! Sorry I can't vote up your answer still – Vadim Oct 24 '12 at 16:01
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I would hesitate to say its virus related. Torrents by their very nature are capable of using your entire available download speed. Other downloads, from a dedicated server with a limited upload speed will be slower by comparison. That is just the nature of the beast.

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But my friend using same internet as I. And when I run youtube video at his home - it always goes with very good speed! – Vadim Oct 24 '12 at 15:55
If you suspect a virus on your computer, please start by telling us what Antivirus program you use. Specs of his computer and your computer will help as well. – francisswest Oct 24 '12 at 15:57
I know it is strange but I don't use some antivirus. I'll run the Dr Web cure it later, but now I want to know the cause of this behaviour. – Vadim Oct 24 '12 at 16:00
Its impossible to tell what the cause of the behavior is without some more specifics. Also, there is no good reason to not run Antivirus these days. Please dont run something called "Dr. Web Cure It" that sounds like a less than legit "myfastpc.com" sort of crapware site. – francisswest Oct 24 '12 at 16:05
What antivirus can you advice? – Vadim Oct 24 '12 at 16:08
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