Why isn’t my specific device model connecting, while other models work?
Answer
If you have a specific device model that won’t connect to your platform (for example, Teltonika), while other models work, the most likely cause is a closed port.
Example: Teltonika typically uses port 47776.
Verify from an external host:
nc -zv your_domain.com 47776
Open the required port, then retest.
For a full list of ports, search for the device model on the device list page.
