# FCM service not available Last updated: July 24, 2026 ## Problem A user is trying to enroll a mobile device and receives the error message "FCM service not available." ## Cause You might get this error message if FCM service is unavailable when you try to enroll the mobile device. ## Resolution - Ensure Google Play Services is installed in the device. - Ensure the device has proper internet connectivity. - Ensure this URL *.clients.google.com:443 is allowed on the device. - Ensure the device time is the same as the local standard time. If the issue persists, contact MDM Support (mdm-support@manageengine.com) Applies to: Profile Management, Device Enrollment Keywords: Profile Specifications, Device not reachable, Android Agent uninstallation