Explain this to me

Generator Man

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This graph puzzles me:
http://i61.photobucket.com/albums/h67/Pitzi_photos/usage.jpg

To explain, I have a 4gb/month account, on top of this I had to load another 3gb on the 6th due to one of our computers being stuck with a rather large file that it kept on trying to send.

Other than that, we closed down on the 15th, and I was away completely from the 23rd to the 28th. The yellow bit is uploads, other than the odd pic on facebook, and a few e-mails with attachemnts nothing is uploaded.

I suspected unauthorised access to our wi-fi, and changed the password yesterday morning, but looking at yesterday's usage, it hasn't made much difference.

I'm puzzled here.
 
how many pc is running on the internet? maybe shut down 1 by 1 and see which one is causing it
 
You can install NetLimiter 2 Monitor (which is free) to monitor each PC's traffic individually. Under Windows 7 you'll have to install it using the WinXP Compatibility options though.

If your router supports SNMP, then you can monitor the router's traffic with PRTG Traffic grapher, but you won't be able to see which PC the traffic is originating from.

W.r.t. your wireless setup: are you using WPA2-PSK or the old WPA encryption?
 
It is very difficult to recommend any possible solutions without knowing the scale of the graph. How much data are we talking about here. I don't think your wireless was being used illegally. If that was the case you would expect to see a bigger section of data being downloaded.

Are you certain there is no p2p software running on the network. Do you use the firewall of your router, if so check the log files for machines accessing high port numbers that would very often be a p2p client.
 
Referring to your last reply - then this:

It is very difficult to recommend any possible solutions without knowing the scale of the graph. How much data are we talking about here. I don't think your wireless was being used illegally. If that was the case you would expect to see a bigger section of data being downloaded.

Are you certain there is no p2p software running on the network. Do you use the firewall of your router, if so check the log files for machines accessing high port numbers that would very often be a p2p client.
 
Are you certain there is no p2p software running on the network. Do you use the firewall of your router, if so check the log files for machines accessing high port numbers that would very often be a p2p client.

sure looks like torrents, those days uploaded was high downloaded looks high too, or i'm reading the graph wrong :)
 
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