To provide a wireless communication system, by which a failure in a base station and its cause can be recognized on each communication terminal, and to provide a management server.

When a communication failure occurs in the system and a fault detection section 133 in a base station 1 generates and transmits a failure alarm to an EMS server 2, a control section of the EMS server 2 judges whether the criterion of conditions preset by a maintenance person is satisfied or not (whether a situation predicting a certain problem in communication by a wireless communication system 100 has occurred or not), and makes the base station 1 report the (preset) contents of advice about a predicted failure to the communication terminal 3 of a user (subscriber of the wireless communication system 100) if the criterion is satisfied.