> For the complete documentation index, see [llms.txt](https://rtkdocs.geodnet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://rtkdocs.geodnet.com/knowledge-base/rtk-service-faq.md).

# RTK Service FAQ

**Q: Why is the login failing?**

A: Check that your credentials are valid and have not expired. Ensure that the username and password match the credentials provided. If the issue persists, contact support for further assistance.

**Q: Is there a limit to the number of simultaneous connections?**

A: Yes, the limit depends on your account type. Typically, most accounts allow only one simultaneous connection. Refer to your account details for specific limitations.

**Q: Can I share my credentials across multiple devices, or is it restricted to one connection at a time?**

A: Credentials are typically restricted to one device at a time. Attempting to share them across multiple devices may cause login issues or connection failures. Please refer to your specific account details for any exceptions.

**Q: Does the account allow access to multiple base stations simultaneously?**

A: No, accounts are configured to access data from only one base station at a time. If you require data from multiple stations, you may need a different setup or account type.

**Q: Have I selected the correct mountpoint?**

A: In most cases, selecting "AUTO" as the mountpoint is sufficient unless otherwise specified. If unsure, follow the instructions provided for your specific use case.

**Q: How do I find a list of available mountpoints, and which one is optimal for my use case?**

A: After entering the NTRIP connection details in your device, a list of available mountpoints will be displayed. Typically, "AUTO" is the best choice unless you have been instructed otherwise.

**Q: Does the server provide correction data in a format compatible with my receiver (e.g., RTCM 3.x)?**

A: Most servers deliver correction data in standard formats like RTCM 3.x, which are widely compatible with modern GNSS receivers. Verify your receiver’s supported formats to ensure compatibility.

**Q: How far can I be from the base station to still receive corrections?**

A: For optimal accuracy, maintain a distance of 25 km or less from the base station. Beyond this range, performance and accuracy may degrade.

**Q: How accurate are the RTK corrections at this distance?**

A: Within 25 km of the base station, RTK corrections typically achieve 2 cm accuracy. Performance may vary when exceeding this distance, depending on environmental conditions and equipment quality.