> For the complete documentation index, see [llms.txt](https://docs.premium-positioning.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.premium-positioning.com/guides/septentrio-mosaic-go-mosaic-x5.md). # Septentrio mosaic-go / mosaic-X5 These steps connect a Septentrio mosaic-go / mosaic-X5 to the Premium Positioning correction network over NTRIP, using Built-in NTRIP client (web interface). They assume you already have your NTRIP credentials. ### Before you start * Your NTRIP username and password, from your Premium Positioning welcome email or your account on the customer portal. * Built-in NTRIP client (web interface). * A working internet connection on the controller or phone. * A clear view of the sky at the point you are measuring. ### Network settings These are the same for every Premium Positioning customer. Only your username and password are unique to you. * Server or host: rtkpremium.xyz * Port: 2101 * Mountpoint: COMMON * Protocol: NTRIP ### Steps 1. Power and connect the receiver: Connect the mosaic to your computer with the USB cable (on ArduSimple-style boards use the POWER+GPS port). The receiver presents as an Ethernet-over-USB device; install the Septentrio USB driver first if it isn't detected. The USB link both powers the board and carries the web interface. 2. Open the web interface (RxWeb): In a browser go to - the default address over USB. The RxWeb dashboard loads, showing satellite tracking and position status. Over Ethernet/Wi-Fi, use the receiver's IP on that network instead. 3. Give the receiver internet access: The NTRIP client needs an internet path. Simplest: share your computer's connection over the same USB cable - in Communication, on the USB settings, enable 'Outgoing Internet Access Over USB', then allow internet sharing on your computer for the receiver's adapter. If the mosaic has its own Ethernet/Wi-Fi internet, skip USB sharing. (Wording varies by firmware.) 4. Open the NTRIP settings: Go to the Corrections menu and select NTRIP (on some firmware Communication > NTRIP / NTRIP Client). 5. Create a new NTRIP client: Click 'New NTRIP client' ('+New NTRIP client' on some firmware). If a Mode field shows, set it to 'Client'. 6. Enter the Premium Positioning caster: Caster (host): rtkpremium.xyz, Port: 2101. Leave the protocol as standard NTRIP - the default for the mosaic NTRIP client. 7. Enter YOUR NTRIP credentials: In User name and Password enter the personal NTRIP credentials from your welcome email - unique to your account; do not use anyone else's. 8. Select the COMMON mount point: Once Caster and Port are correct, the Mount point (Stream) pull-down activates and the source table loads. Select COMMON. If empty, re-check host/port/credentials. 9. Set position output to the caster: Set 'Send GGA to caster' (the NMEA GGA / position-feedback option) to 'auto' so the receiver sends its approximate position and the caster returns corrections for your location. (Label varies by firmware.) 10. Apply the connection: Click OK (or Apply). The NTRIP Client status should change to 'Connected' and the corrections indicator should show incoming data. 11. Confirm RTK Fixed on the Position page: Open the Position (PVT) page and watch Autonomous → DGPS → RTK Float → RTK Fixed. 'RTK Fixed' confirms cm-level corrections are applied. 12. Save so it reconnects on power-up: Persist the configuration so the NTRIP client reconnects after a reboot: Admin > Configuration > Save the current settings to the boot/start-up configuration. (Wording varies by firmware.) ### If the fix will not hold If the mount-point list won't load, the usual causes are no internet on the receiver (re-check USB internet sharing) or a typo in host/port/credentials. If it reaches RTK Float but not Fixed, allow a few minutes with clear, open sky. Menu/field labels vary by firmware (Corrections/Communication, NTRIP client, Caster/host, Mount point/Stream) - match the closest equivalent. For more, see RTK corrections troubleshooting and Fix inconsistent RTK accuracy on site. ### Need help Support is available 24/7. Include your receiver model, the mountpoint, the solution status, and the correction age when you get in touch.