If you have an FIU ID, select the network from your smartphone device settings and follow the instructions on this Student Wifi page provided by the AskIT Service Portal.
If you are a visitor you can create a Guest ID, but can only access the FIU_WiFi network.
If this does not answer your question, or if there is ever anything we can help you with please don't hesitate to use our "Ask a Librarian" feature, or drop by the reference desk. Remember, "We are here for you".