A server device of the invention prevents congestion in a wireless network due to an excessive number of accesses. The behavior analysis server device includes a behavior analysis unit which analyzes data packets of each mobile terminal connected to the wireless network within a predetermined analysis time and generates information indicating communication behavior as communication behavior information; a recording unit which records the communication behavior information; and a type determination unit which determines whether the communication behavior information satisfies a predetermined behavior type determination condition, and transmits a notification for connecting, a mobile terminal that has performed a communication associated with the communication behavior information satisfying the predetermined behavior type determination condition, to a predetermined cell.