I had the exact same problem. My dl with utorrent were previously 400-500kb/s. its now <10kb/s. i also notice if i were to run utorrent, all my other downloads from filesharig sites, youtube, gaming slows down all together.
I tried running utorrent on my other pc at home and but the outcome remains the same.
I then download bitcomet and the speed was 400-500. But the connection to trackers failed, and it took a while to obtain seed/peers from dht and peer exhange.
I wonder if streamyx is able to detect utorrent users and has resorted to throttle the Entire net connection of that user?

Possible but unlikely. My modem is 6 months old. ive been using utorrent without any issues with maximum 100 peers without any issues until 3 days ago, my speed crawls at <10kb/s. Ive tried to change ports, lower the bt.connect_speed and increased and lower the net.max_halfopen values. After restarting my modem, the speed was ~50kb/s for about 5-10mins then drops down to <10kb/s. The result was same with the other pcs in my home. was using utorrent 3.1.3. I tried updating it to 3.3 but the results still remain the same.

I then tried out Bitcomet and the problem was solved. However, it couldn't connect to the trackers and rely on DHT and peerexchange to obtain peers. but once it manage to get adequate peers, the speed gradually rose to 400-500kb/s. Im not using a proxy to connect to the trackers. I am not sure is trackers were being blocked or the connections to the trackers were poor due to the SEA-ME-WE 4 cable damage.

perhaps u misunderstood me. I was merely sharing with everyone the possible solution of slow torrent. I never asked for for ur guide to speed up torrents as my speed is now excellent for a 4mbps (for now at least *fingers cross*).
I agree Bitcomet is commonly banned in private tracker, but not all public trackers. as i previously mention, i was unable to connect to trackers But later manage to do so via proxy (for trackers only).

Perhaps u were unaware of the recent submarine cable damage along the SEA-ME-WE 4 recently? The cable damage could have cause connection to certain trackers located at europe to be poor. But it could also be streamyx making changes and have started blocking the common trackers used by torrents.
http://www.tm.com.my/about-tm/media-centre...PEUNDERWAY.aspx


Seeing that gunjack also manage to overcome the slow torrent issue by using an alternative torrent.. it could still be possible streamyx has directly targetted utorrent. afterall utorrent is widely used by many ppl. there maybe some settings or connection from utorrent that triggers it.

Anyway I'm not here to argue but to share my experience with the sudden slowdown in torrent that started less than a week ago and how i overcome it.
I wont guarentee it will work for everyone but u can give it a try.

Actually... i always have been using google dns (8.8.8.8 and 8.8.4.4). The slowdown, and inability to connect to these trackers only started a few days ago. There were no recent change in my utorrent or system files at that time.
i agree the connection from MY to EU has always been poor. but its has became worst recently. most probably due to the cable damage and/or repair process.

I said utorrent, not bitcomet...

They have started throttling p2p programs again.... several areas has already been affected since earlier this yr.. their gradually throttling everywhere possible..
there is a way around it though.