Special thanks to Internet technology specialist and guest author, Joanna Gil, for this explanation.
Port 4900 is the default port, but MUTE can use others. Because some ISPs block the file-sharing port 4900, you may need to adjust your router around this. If your ISP does block port 4900, simply pick a port in the 5000 range.
If you do select a port other than 4900, you will need to perform the extra step of editing your computer's port.ini file.
My firewall is blocking MUTE. What do I do?
Using Windows Explorer, search for and open the settings file called behindFirewall.ini. That file will have a single number, either 0 or 1. If you are firewalled and cannot open a port for MUTE, set this number to 1 then simply save and exit the behindFirewall.ini file. Then restart MUTE.
If you are uncomfortable editing files, search for the behindFirewall.ini and delete it altogether. The next time you start MUTE, you will be asked if youre behind firewall. If you answer yes, the file will get re-created with a proper setting.
For detailed configuration and troubleshooting check MUTE FAQ here: http://www.planetpeer.de/wiki/index.php/TheMuteFaq
More on MUTE File Sharing:
FAQ: "What is 'MUTE' P2P Networking?"
FAQ: "How Does MUTE Work, Exactly?"
FAQ: "How Does MUTE Protect My Privacy?"
Download MUTE: Download the MUTE install here.
Get started here: Instructions on installing MUTE networking software
Configuring your router for MUTE: Instructions on how to make your router at home allow MUTE file sharing.