1. Using UPnP or NAT-PMP
Newer router models often have the UPnP (Universal Plug 'n Play) or NAT-PMP built in. This allows for automatic forwarding of ports, making the rest of the instructions on this page unnecessary. Check your router's documentation for instructions on how to enable it, and then enable UPnP in uTorrent:
Go to Options > Preferences > Connections, check "Enable UPnP port mapping" and check "Enable NAT-PMP port mapping."
2. Manually forwarding a port
If UPnP/NAT-PMP is not available or does not work, it will be necessary to forward the port manually. A forwarded port is needed for any P2P client you use, not just uTorrent. Since we want to forward a single port, we need to set the listen port for BitTorrent (or uTorrent):
To set a single port, navigate to Options > Preferences > Connections
Click "random port" once, and note the port number provided. This will be the port number you will be forwarding in your router. (You may also assign a port number of your choice)
Uncheck "Randomize port each time uTorrent starts." The port number will no longer change each time uTorrent is started.
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