NGLSync Troubleshooting and Support Sometimes problems can occur when managing your WebAssign courses through NGLSync. Google Classroom TroubleshootingSometimes problems can occur when syncing your course with Google Classroom. School Not ShownWhen you click Begin Registration, your school is not listed. Student ID Number Already UsedWhen you try to create a student account, you are told the student's number is already in use. If the student tries to create their own account, they are told they already have an account.