A system comprises a first network to which at least one user device and a gateway device are connected, which gateway device is also connected to a second network and is configured to cooperate with a virtual gateway application accommodated in the second network. A method of managing the system comprises the step of accommodating an auxiliary virtual gateway application in the at least one user device, which auxiliary virtual gateway application is configured for providing at least some functionalities of the virtual gateway application when communication between the gateway device and the virtual gateway application is lost. Although the virtual gateway application and the auxiliary gateway application may have distinct sets of functionalities, it is preferred that these applications each have DHCP functionality. This allows the auxiliary virtual gateway application to take over DHCP functions when communication with the second network is lost.