The InterCLASS Cloud Student program was designed to connect every 60 seconds with the teacher program as a keep-alive feature. The InterCLASS Cloud Teacher program will automatically connect to the students in the class roster when you start a class. To avoid confliction of students being listed in multiple classes at once, please make sure that teachers manage their class rosters in accordance to when their students attend their classes during the school day (if students rotate). Through the InterCLASS Cloud program, teachers are able to manually connect or disconnect a student from the class if they run into that issue and then change their class roster accordingly when they have time to do so. After the class roster has been changed in Google Classroom, then please sync InterCLASS with Google Classroom one more time.