Cel-Fi DUO/DUO+ Step by Step troubleshooting Guide (SBS 25) December 16, 2019 15:51 Updated There is a issue with one of your power supplies. Please reach out to your point of sale for warranty replacement. Related articles Cel-Fi DUO/DUO+ Step by Step troubleshooting Guide (SBS 24) Check your RAW Signal Strength Cel-Fi DUO/DUO+ Step by Step troubleshooting Guide (SBS 6)