I'm having trouble seeding torrents...downloading works like a dream, and uploading even works while the torrent's still downloading. However, after the torrent finishes downloading, I find myself unable to continue seeding the torrent. The number of located peers appears to be correct (or plausible, at least), but none of them can successfully connect. They'll appear for a second in the Peers tab of the info widget, but will proceed to be immediately removed from that list.

Ports in my router are all forwarded correctly. And even if they weren't, I should still be able to seed to people that my torrent client can initiate the connection to.

For information, I'm running openSuSE 10.2, KDE 3.5.1, kernel 2.6.18.8.

EDIT: I was mistaken, uploading does not in fact work, even while the torrent is still downloading. I've tried changing ports to see if my ISP started blocking the one I was using, but to no avail. The private tracker I belong to disallows the use of "common" and default bittorrent ports, so I know it's not an issue of outgoing connections to those ports being blocked.

You mention Private Tracker.

Is it possible you're not seeding the files in question because everyone already has the files? A common occurrence on private trackers is for big, season torrents to be heavily populated by Seeds, and with few leeches.

Even a season torrent, with say 20 Seeds and 10 leeches, those leeches may be people who have a partial season, and are not downloading the rest.

Without knowing the details of the file, there's no way to know if it's you or the torrent.

What about files from public trackers? Try something common and popular.

Go to linuxtracker.org, sort by Leechers, find torrents with heavy populations of Leeches (like this one http://linuxtracker.org/torrents-detail ... 2707&hit=1) and try there. See if you can upload.

I've tried with (lots of) public torrents as well, to no avail. Additionally, I've tried a number of different files on the private tracker, with no change in behavior.

During uploading, KT will kick out all seeders, so you should be left with all the leechers.

Right...but it isn't successfully establishing a connection to anyone, seeders or leechers alike, after the torrent is completed.

At some point while I was asleep last night I managed to upload 6.2MB of one torrent...I'm not sure when it happened, can check the log though after this system reboot.