Troubleshooting ContentsPower up troubleshootingProblems at power up and their possible causes and solutions are described here.AIS data troubleshootingVSWR Alarm troubleshootingIf you experience regular VSWR alarms try the troubleshooting guidance below.Data conflicts and data loopsTo avoid potential data conflicts and data loops, products should not be connected to the same device using more than one network protocol.LED Status indicatorUSB connection troubleshootingIf you encounter issues connecting the AIS unit to a PC/laptop via USB, try changing the USB cable in the first instance. If that does not resolve your issue, try using a different USB port, and also avoid using ports on USB hubs.Previous topic: MaintenanceNext topic: Technical support