A system and method for obstacle-free network communication allows two host computers to share data and resources freely without worrying about the restriction of the security systems in their networks. The system and method mainly comprise three software modules namely, Agent module, Initiator module, and Acceptor module. The Agent module is implemented in a computer server for receiving and storing connection requests and data from networks. The Initiator module is implemented in a host computer for sending connection requests and data to the Agent module of the computer server. The Acceptor module is implemented in another host computer for periodically querying the Agent module of the computer server to fetch the connection requests and the data from the Agent module of the computer server. Consequently, even when no direct connection can be established between the two host computers, their communication is still available via the Agent module.