My PC is using Up All Internet Bandwidth

July 4, 2011 at 09:00:27
Specs: Windows XP, CPU: intel, core 2 duo; RAM: 3GB
-Taking all of the bandwidth.
-My computer is causing it.
-Our Internet providers are Comcast(cable) for default and Frontier(DSL) for backup; business class.
-Normal: 6Mbps down, 4Mbps up; Abnormal: 0.4Mbps down, 0.2 up; around those numbers.
-Possibly a virus.
-Task-manager shows as much internet use as usual, even if it is apparent that my computer is using allot during that time.
-Random times.
-Might have settings allowing it to take however much broadband it wants, I do not know if there is such a setting or not.

Please help as soon as possible, I only have a day or so before my dad cuts me from the internet.

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July 4, 2011 at 09:09:46
Close all programs that might access the internet.
Open command prompt and type in:
netstat -antb

Check the list for established connections to a public ip address.
There should be none.
If there is one, look for the given program name in taskmanager and kill the task.

Then try netstat -anbt again and see, whether there is another established connection to a public ip address.

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July 4, 2011 at 09:13:49
Your computer does not "take" internet bandwidth - it uses what is available to it.

There are many things that determine how much bandwidth you have available on the internet.

See Response 2:

The max internet speed you get varies considerably depending on which web site you're connecting to, and how busy the site is at the time you access it.
If you want to compare your internet speed at different times, you need to test your speed at the same web site, doing the same thing.

E.g. I get the highest numbers from this web page - you may get higher numbers from a different one depending on where you are on the internet
I choose the same test and the same server every time. What you get for the max speed at a particular time varies somewhat depending on which server you choose - I get the highest numbers from a server in Canada (I'm in Canada).

The first run of a particular test is the truest indication of your internet speed from the site. If you run it again right away or within a very short time, the subsequent tests will likely yield a false higher result because part of the data is already on your hard drive.

Universal DSL/ADSL stuff.
See the latter part of Response 1 here:

Wnen a DSL or ADSL internet connection becomes poor, you often get no indication via an led that it is poor, unless it's so poor you're not getting any connection at all and the led is off, and the connection speed usually does NOT improve when whatever caused the connection to be poor is no longer there.
When your internet connection speed is poor, try re-setting the connection.
To do that while Windows is running...
If the DSL or ADSL standalone modem, or combo modem / router, has a power switch, switch it off, then switch it on. If it doesn't have a power switch, unplug the power adapter's cord at the device (pull on the plug, NOT the cord), plug it back in.
In either case, wait until one of the leds on the front of the device indicate that you have a working DSL or ADSL connection.
(If that takes a long time, you probably definitely have a problem mentioned in the Universal DSL/ADSL stuff.)

If you're using a wireless network connection between your computer and the high speed modem, or whatever connects you to the internet, there are additional things that can be wrong.

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July 4, 2011 at 11:15:04
How many computers are sharing the internet connection? Are all the computers running slowly? Shutdown the one that you think is hogging all the bandwidth, then see how the others are running. If they all perk back up, you know the problem is with the one you shutdown. Unplug the internet cable from that computer, boot it up, go directly to safe mode, then run a full virus & malware scan. If you don't have CCleaner, download the portable version & run it from a thumbdrive (while still in safe mode). Run both the cleaner & the regsitry scanner - remove everything they find.

While you still have CCleaner open, click on the Tools, then click Startup. Look over the list to see if there are any suspicious entries. You can then either Delete or Disable any entry you don't want pre-loading at startup. Just for an example, I just looked at my startup list & I have just 4 entries enabled - audio mixer, network, firewall, anti-virus.

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July 5, 2011 at 13:57:07
Might be full of spyware and malware or a virus.

1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.

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July 8, 2011 at 22:54:10
@paulsep This kind of helps me. Thank you for reading my problem and trying to help, although I checked the ports and closed the ports that were open and it still kept 'using' all the broadband. So it is something that must be well at hiding from my spyware and making sure I can't see my usage.

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July 8, 2011 at 22:56:50
@mickliq All my spyware programs both the good and the cheep(not insanely cheep) to ensure I had a variety, turned up nothing.

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July 8, 2011 at 23:01:51
@Tubesandwires Read my problems... i know it is me... my connection is good and supplying as usual... I have isolated myself from the network and everybody else's speed skyrocketed. i have only 5 plugged in and running computers including mine + a website server, ergo why I have business class. I have restarted. It has to do with software I assume...

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July 8, 2011 at 23:04:45
@jefro No help what so ever. I figure I might have a virus or a Trojan... I said that is my list.

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July 9, 2011 at 06:43:30
Did you get any program listed by netstat -anbt, that has an active connection to a public ip address.

If so, use tasklist /fi "status eq running", to get the imagename.
If you've found the program name in list, use taskkill /pid pidnumber /t, to terminate the process and all it's subprocesses.

Then check the bandwidth usage again.

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