Paste the tracker URL (from the trackers tab) into your browser. If you get no response or a DNS error, the tracker may be permanently down. One more thing – are you using an old uTorrent version? Versions before 2.x sometimes break due to outdated DNS handling. If none of the above works, consider switching to qBittorrent or Deluge – both are actively maintained and don’t have this issue.

(Windows) Open Command Prompt as Admin and run:

Right-click the stalled torrent → Update Tracker → Force Re-announce .