s8974 said:
SIM Dashboard does not recognize my game as a telemetry server.
You will need to figure out what the exact requirements are for that dashboard tool, and make sure your network packets meet those requirements. If there exists some documentation, then make sure you read all the parts and verify all your interactions (including port numbers, header formats, authentication, and so on.) If there's only a reverse engineering effort, then perhaps start picking apart the system you're looking at in a little more detail, comparing your interactions with the interactions you see from the working system.
The tool Wireshark is pretty much a must-have for these kinds of debugging situations. If you're not already using it, start there. Capture some traffic that works, and capture your own traffic, and then compare to see what's different.