Slow speed for specific torrents -

[RageGT]

It's been a long while since I last came to this forum! That's because I have never had issues with speed a µTorrent always works perfectly. I am pretty sure this has nothing to do with settings or anything. (using v1.8.5)

I just wanted to ask if you guys think it might be related to specific torrent files, because I've d/l'ed torrents at the same day at full speed but for these 2 torrents I can't get it over 30kBps...

I've getting 2 versions of the same file, hoping that one would give me better speed but they're the same:

seeds - 3 of 1059 connected (2165 in swarm)

peers - 67 of 15626 connected (31182 in swarm)

seeds - 7 of 406 connected (545 in swarm)

peers - 60 of 8031 connected (7322 in swarm)

I'm using this settings for a long time with no problem whatsoever: (only changed max upload speed a few times to see if there was any improvement in the d/l)

Basic BitTorrent Features - all boxes checked but for limit local peer.

Listening Port: 50060 with NAT-PMP port mapping enabled (and FW exception)

Port: 50060 - (Network OK)

Upload speed: 20kB/S - Upload slots: 4

Connections (Per Torrent): 90 - Connections (Global): 250

Max Active Torrents: 3 - Max Active Downloads: 2

I have a 3MB/sec cable and I'm used to get around 350 kBps in my d/l, except for these 2 files when I hardly get over 50 but most of the time it's around 10-30 and they are big files, 7.7GB!

Testing my connection showed: (I wouldn't worry about the potential rate limiting showed because I use to set max upload speed at 40 kB/s)

At http://medidor.interair.com.br/

Sua velocidade Atual : 2.78 Mbps - 2849.1 kbps

At http://www.dslreports.com/

2527 Kb/s down - 437 Kb/s up

At Glasnost:

Is BitTorrent traffic on a well-known BitTorrent port (6884) throttled?

* Completed BitTorrent and TCP transfers using the BitTorrent port 6884:

Transfer Speed TCP Speed BitTorrent Conclusion

Download #0 1578 Kbps 1272 Kbps No rate limiting

Download #1 1485 Kbps 1571 Kbps No rate limiting

Download #2 1781 Kbps 1642 Kbps No rate limiting

Upload #0 77 Kbps 102 Kbps No rate limiting

Upload #1 98 Kbps 57 Kbps No rate limiting

Upload #2 82 Kbps 95 Kbps No rate limiting

Is BitTorrent traffic on a non-standard BitTorrent port (10012) throttled?

* Completed BitTorrent and TCP transfers using the non-BitTorrent port 10012:

Transfer Speed TCP Speed BitTorrent Conclusion

Download #0 1775 Kbps 1154 Kbps No rate limiting

Download #1 1153 Kbps 1589 Kbps No rate limiting

Download #2 1562 Kbps 1658 Kbps No rate limiting

Upload #0 430 Kbps 82 Kbps Potential rate limiting

Upload #1 355 Kbps 63 Kbps Potential rate limiting

Upload #2 371 Kbps 10 Kbps Potential rate limiting

Is TCP traffic on a well-known BitTorrent port (6884) throttled?

* Comparing TCP transfers using the well-know BitTorrent port 6884 and the non-BitTorrent port 10012:

TCP Transfer BitTorrent port Non-BitTorrent port Conclusion

Download #0 1578 Kbps 1775 Kbps No rate limiting

Download #1 1485 Kbps 1153 Kbps No rate limiting

Download #2 1781 Kbps 1562 Kbps No rate limiting

Upload #0 77 Kbps 430 Kbps Potential rate limiting

Upload #1 98 Kbps 355 Kbps Potential rate limiting

Upload #2 82 Kbps 371 Kbps Potential rate limiting

Thanks!

EDIT: Forgot to mention. I'm running a Win 7 Ulttimate 64 with a core 2 quad 9550, 8GB RAM and over 1TB HD space.

Well, just tested with open office d/l and I got 340 kBps...

[Switeck]

Seems to me your ISP really throttles the upload, especially on ports 6880-6900.

And probably throttles BitTorrent upload even on other ports.

2nd link in my signature, 384 kilobit/sec upload settings...since that seems about all you can sustain even if your ISP doesn't throttle!

Encryption-wise, you might get better results doing this:

http://forum.utorrent.com/viewtopic.php?id=46778

or this:

http://forum.utorrent.com/viewtopic.php?id=58714

(NOTE: Those settings were a special case for a wireless ISP, so understand them before you try them!)