The method of the invention, comprising at the user side: a) checking if the load of a first gateway to which a user terminal device is wirelessly connected, falls below a given low load threshold; b) if said first gateway load has fallen below said given low load threshold, looking for other available gateways whose loads at said discrete time are below a given high load threshold and above a given low load threshold; and c) redirecting at least a part of the data traffic of said user terminal device from said first gateway to an available second gateway found at said step b). The system is arranged to implement the method of the invention.