Port 8080 might be occupied by another service (e.g., Skype, Apache, or a game server).
How to change the port:
Note: If the file doesn’t exist, launch uTorrent Web, go to Options → Preferences → Advanced → Web UI → change port there. utorrent oops we 39-ve lost connection to your browser
To verify if the local server is actually listening on port 8080: Port 8080 might be occupied by another service (e
Corrupted cache can break the WebSocket connection. Note: If the file doesn’t exist, launch uTorrent
Then restart your browser and try again.