A network adapter detection is used to establish a videoconference between a videoconferencing unit and a remote endpoint. Information about a plurality of network adapters available for the videoconferencing application is obtained, and one or more test messages are sent to at least one open source server using each of one or more of the obtained network adapters. The videoconferencing unit than awaits a response to each of the one or more sent test messages from the at least one open source server. If a response is received, the videoconferencing application uses the network adapter that received the response to establish a videoconference connection with the remote endpoint.