1.Check if the FAN is running on the unit.
2.Unplug all modules, sd card, Video card and battery from the unit. Once done press the power button for approximate 10 seconds to discharge the static power from the unit. Once done reassemble the unit and see if the unit can be located online.
3.Try factory reset as well to see if that assists in locating the unit online.
4.If nothing assists, contact LiveU Support for further process.