Sometimes uTorrent processes linger in the background without a visible window. Open Task Manager (Ctrl + Shift + Esc), check both the Processes and Details tabs for any uTorrent.exe or utweb.exe entries, and end them all before restarting the application.

Here is a summary of the technical "solid paper" knowledge regarding this error, broken down by cause and solution.

This guide explores why this connection issue occurs and provides actionable steps to fix it, drawing from troubleshooting methods effective in 2026. What Causes the "Lost Connection" Error?