How to troubleshoot your HUB

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There are a few things you can check in order to make sure your Sailsense HUB is working correctly.

LED behavior



The LED on the frontface of the HUB is used as a physical indicator of the HUB's status. Here is the color code : 


ColorDescriptionRoot causes & solutions
BLUE with green flashesAll is OK: the HUB is connected to our servers and there is NMEA data flowing on the CANbus. -
Steady BLUEThe HUB is connected to our servers, but there aren't any NMEA data flowing on the CANbus.
  •  No data is flowing on the NMEA2000 network --> check that other NMEA2000 instruments on the NMEA2000 network are powered ON
  • The HUB is not physically connected to the NMEA2000 network --> Check that the NMEA plug of the HUB cable is connected to the NMEA2000 network of the boat
WHITE with green flashesNMEA data are flowing on the CANbus, but the HUB is not connected to our servers.
  • There is no mobile coverage at your present location / or the coverage is very weak --> check if you have coverage on your mobile phone. If not, move the boat to an area where you have coverage on your phone. 
  • The HUB is in the process to connect to a network --> if the problem persists after 30 minutes, remove the power cable of the HUB for 2 minutes and then plug it back.
  • If the problem persists, the HUB is most likely located in an area where it is not allowed to connect --> please contact our support team for further assistance.
Steady WHITEThe HUB is not connected to our servers and there aren't any NMEA data flowing on the CANbus.
  • See potential root causes above
Flashing WHITEThe HUB is booting. 
  • It's normal! --> Wait a few minutes for the LED to change color.
REDThe HUB is in ERROR mode.
  • You can try to force a hard reset of the HUB by removing the power cable for 2 minutes and then plug it back. If after the next reboot the HUB's led stays red, get in contact with our support team.
No ledThe HUB is not powered on.
  • The HUB does not get 12-24VDC power --> Please check that the power source is ON. If the problem persists, please check the voltage of the power source (via the red and black cables of the cabling kit). It should be > 11V for the HUB to boot.
  • Please contact our support team for further assistance.