Abstract: Exemplary network infrastructures and methods employing a Security Gateway utilize client authentication for use of a secure connection between an application client and an application server of a protected network. Once a secure connection has been set up, a Security Gateway can start a timer for establishing a period within which a password and username are to be received from the application client before traffic is allowed to exit the Security Gateway. If a username and password are provided while the timer is running, the Security Gateway can contact a single sign on (SSO) server to check whether the username and password are correct. If the username and password are valid, the Security Gateway can start relaying traffic externally to the application server. If an invalid username and password are provided or the timer times out before receipt of a username and password, the secure connection can be terminated.

Abstract: A wireless mobile communication device may include a first and second transceiver, a network load detection system, and a second transceiver controller. The first transceiver may be configured to wirelessly communicate with a first wireless communication network, such as a wireless cellular communication network. The second transceiver may be different from the first transceiver and may be configured to wirelessly communicate with a second wireless communication network which may be different from the first wireless communication network, such as the Internet and at least one Wi-Fi access point. The network load detection system may be configured to detect load information indicative of an amount of load on the first wireless communication network. The second transceiver controller may be configured to autonomously power on the second transceiver when the load information indicates a heavy load on the first wireless communication network.