Signal K has an friendly and helpful community where you can find support and assistance whether you are trouble shooting issues or just have a question.
"Network congestion detected" - What does this mean?
Your device's connection to the Signal K server is slower than the data being sent. This can happen when:
WiFi signal is weak - try moving closer to your access point
Network is busy - other devices streaming video, large downloads, etc.
Slow mobile connection - cellular data may not keep up with high-frequency updates
Many sensors active - the server is sending a lot of data
What happens?
When your connection can't keep up:
The server keeps only the most recent value for each data point
You still see current, accurate values - they're just not every single update
The system recovers automatically when your connection improves
This is normal and safe. Your navigation data remains accurate - you just might miss seeing some intermediate values (like every single GPS position update during a slow period).
What can I do?
Move closer to your WiFi access point
Check if other devices are using a lot of bandwidth
If on a boat, verify the network connection to your navigation computer
Consider using a wired Ethernet connection for critical displays
For remote access (4G, VPN, public internet): enable WebSocket compression in Admin UI → Server → Settings to reduce bandwidth usage
