NGLSync Troubleshooting Troubleshooting Sometimes problems can occur when signing in to your MindTap courses through NGLSync. MindTap is Not RespondingIf MindTap is not responding or working correctly, you can check its status at techcheck.cengage.com. Students Asked for PaymentYour K–12 school district has purchased access to MindTap for its students, but when you create an account and sign in at the main Cengage home page, you are told your trial access will expire and asked for payment.