How to switch to the SurfBouncer Personal VPN TCP Servers.   In order to achieve peak performance, SurfBouncer uses the UDP protocol to transmit data. Sometimes an ISP will block UDP on their network to prevent encrypted traffic. Also, there are times when network congestion and latency cause the UDP protocol to drop packets and even lose the connection. We operate TCP servers in addition to UDP servers to resolve these issues. NOTE: If UDP works do not use the TCP servers as performance over TCP is normally not  as good as over UDP. To switch to the TCP servers, proceed as follows: 1 - Make sure the SurfBouncer OpenVPN connection is disconnected. Log out of OpenVPN if you are connected. 2 - Download the TCP configuration file here. (right click and save link as) 3 - Use this file to replace the current file in your config directory. --For Windows XP users using the Windows XP 32 version of SurfBouncer, the location of the config directory is C:\Program Files\SurfBouncer OpenVPN\config. --For Windows Vista users the location is C:\Program Files\OpenVPN\config. --For Mac users download the file and place in your home directory, library, openvpn folder. Now, launch the application and log in to the server. Test the connection to determine if the problem is solved. If the TCP server works, then there is nothing else for you to do. Please note that if you switch to the TCP server and run any of the port change configs on the Ports page, you will re-set back to the default UDP servers. To switch back to the UDP server, go to the ports page and run one of the port change scripts. This will return you to UDP functionality the next time you log in.