If your FleetBroadband (FBB) is not working, it could be due to signal issues, incorrect settings, or hardware malfunctions. First, check the antenna alignment to ensure it has a clear view of the satellite. Verify that the device is powered on and all cables are securely connected. Additionally, confirm that your airtime balance is sufficient. If the problem persists, restart the terminal and check for software updates. In cases where the issue remains unresolved, contact your service provider for further assistance. Regular maintenance and proper setup can prevent many common problems.