Fraser has asked me to post a guide for PingPlotter, I will keep it simple like myself, here goes..
Download PingPlotter Here
Type a close IP to your region I usually use twitter.com or .co.uk but as i write this both were connecting to the US as I am in the UK I have set the ping plot to bbc.co.uk.
Typing bbc.co.uk into the target address bar leaving the interval at 2.5 then pressing enter on your keyboard or the go button.
PP type in IP.jpg 98.35KB 0 downloads
A congested line looks like this.
Congested over used line.jpg 251.54KB 1 downloads
You can see the ping in real time, the ping numbers are listed to the left of the plot.
I achieved this by setting my congestion control sliders to 100% each so that the duma was not helping with local congestion thus saturating the line.
If you have a ISP issue from say a Intel PUMA 6 based CPU in a modem or ISP congestion an BT line fault (US/World infrastructure alternative) or even a faulty Ethernet cable, RJ11 or faulty Master socket face plate your line may look like this even when you set your sliders lower.
This is a line idle with minimal traffic being used that does not use a PUMA 6 based chipset or have any network issues.
idle line.jpg 215.43KB 1 downloads
This is a line downloading a full width saturating the line but using the duma congestion control at 70% each way
downloading using CC.jpg 222.22KB 1 downloads
If you would like to post a bad result to the forum or save a plot to prove to your ISP there is an issue after ruling out your own network then press File and click on save image and this will give you an image of the GUI at that moment for you.