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Up until thispast month, I've had no problems downloading torrent files using uTorrent. Now, nether magnet links nor .torrentfiles can download. Is it possiible that hte ISP has startd blockingP2 P traffic.? Is there a way to detect this? ( I mean finding out yourself and not asking the ISP directly. Would that even work?)

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find out from your ISP – pratnala Nov 20 '12 at 6:45
Enable encryption. ISP can only block traffic they known. I will bet this is a routing problem as almost no ISP completely cuts torrent traffic. – Mikhail Nov 20 '12 at 6:52
See – Moab Nov 20 '12 at 15:43
@P thx for sharing. all your idea? – T. Webster Nov 22 '12 at 5:56
up vote 1 down vote accepted

you can port blocking from your isp with this site:

What is my ip - Port Scanner

but you can randomize port of torrent client that cause bypass specific port blocking from isp.

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This doesn't work anymore as network monitoring software has incorporated learning algorithms into its detection strategy.. – Gabriel Fair Sep 13 '15 at 16:57

There are 2 software's you can run to attempt discovery of ISP bittorrent throttling.

Switzerland Network Testing Tool

Glasnost: Test if your ISP is shaping your traffic

More reading

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