Transmission not downloading

Question

I'm using the Transmission which was shipped in 11.10. All the configurations in Ubuntu 11.10 are the same as they are in my Mac OS.

In Ubuntu, Transmission is not downloading at all: 0 peers at all times.

When booting into Mac OS, all seeds turned out to be fine (high speeds, lots of seeders).

Solution

In the Transmission menu go to Edit → Preferences → Network.

Check if your port (usually 51414 by default) is open, if not go forward by units (51415,51416..) until you find an opened one, this should work.

Be sure to disable your firewall for transmission (if you have set one).

Comments

[zetah]

Me too, randomly, but if I leave it for some time, it catches the train. So if you weren't patient, try it, and if not I don't know what is the issue. Some suggest changing Encryption in privacy options, especially if it's set on 'require encryption' and tweaking Privacy tab in general. I don't have references right now, but quick Google can lead to those I guess

[Ringtail]

Running "sudo ufw allow out 6969/tcp" may fix problem.

[Michael Gundlach]

Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.

[Pedro Rolo]

I'd add to it that maybe you should enable the Network->UPnP option.

[Pedro Rolo]

I would say that this doesn't directly address the user's problem, since 1. If there are problems with routing or the firewal the problem is likely to also apply to other torrent applications, 2. Transmission is OK, since it has a non-bloated interface, full-fledged feature set and a large user base. 3. The user's question addresses Transmission.