If encryption is set to "Required," you can only connect to peers using encryption. Setting it to "Enabled" or "Prefer Encryption" allows a wider range of connections.
Specific settings within the Vuze client may prevent seeding even when the network is clear.
Windows Firewall or third-party security software like Avast can block Vuze's traffic. Ensure Vuze is whitelisted in your Windows Firewall settings.
Vuze uses a "Seeding Rank" to decide which torrents stay active. Torrents with higher share ratios or those that have completed more "seed cycles" may be queued to prioritize "more desperate" torrents with 0 seeds.
To be "connectable" in the BitTorrent world, your router must be configured to forward the specific port Vuze uses. You can test your port on sites like CanYouSeeMe.org . If the port is closed, other peers cannot initiate a connection with you.
Sometimes the problem isn't with your setup, but with the torrent itself.
If your global upload speed is set too low (e.g., below 1 Mb/s), Vuze may struggle to maintain stable connections with peers. 3. Swarm Health and Peer Behavior