I've tried to open ports up, down , left and right I've added them into my Router, into the container. I've changed them I don't know how many times now. I've even attempted to follow these instructions (below) and every time it stays closed. This is the only client (rtorrent specific) that has this problem. It only passively uploads files to others. please help I thought I had the solution but i have failed at every step.
To fix this, follow these steps:
1. Go to your Container and stop it. (Docker, select the Container, click Stop.)
2. With the Container selected, click Edit > Port Settings.
3. Click the Add button (at top left) and add a new entry.
4. For Local Port, the GUI will set Local Port to Auto, but you need to manually change that to 51413 (or whatever your listen port was set to). The GUI may tell you that the number you entered isnt correct, but it is.
5. For Container Port, enter 51413 (or whatever your listen port is)
6. For Type, Select TCP.
7. Click Ok to save your changes... and thats it.