¶ Behavior
Yarbo prioritizes HaLow as the main method for transmitting RTK positioning data because it is stable and recommended.
When the Data Center (DC) connection = 3 (offline mode) and HaLow also disconnects for unknown reasons, Yarbo cannot receive RTK correction data.
As a result, RTCM(Real-time GNSS correction) data is lost, and the GPS icon (RTK system connection status) in the app will turn grey.
Note: During normal operation, the connection status may switch between 2 and 3. This is expected behavior. However, a solid status 3 that does not change is not normal and may indicate a connection issue. If you see a constant status 3, try refreshing the page or view a few times to ensure the displayed data isn’t stale.
¶ Diagnostic Tips
Open the App Diagnose Page.
- If DC Connection = 3 and HaLow = False, HaLow has been disconnected.
- Restart the DC: after reboot, HaLow often reconnects (HaLow = True) and RTK can resume offline transmission.
Even if HaLow reconnects, if DC Connection remains 3, it means the DC still cannot connect to the Internet.
Without Internet access, the DC cannot upload location data to the NTRIP server, and Yarbo cannot receive the highest-accuracy correction data.
¶ Temporary Workarounds
- Restart the Data Center (DC) – this often restores the HaLow connection.
- Verify the Ethernet cable and PoE injector connections.
- Check your router and ensure the Data Center is not being. blocked by any firewall or network blacklist.
¶ Long-Term Plan
- Yarbo is improving Data Center stability to reduce unexpected disconnections.
- Future updates will enhance automatic HaLow re-pairing and self-recovery to minimize user intervention.