You should follow the troubleshooting guide.
Well I have done that
I get location update messages, but they dont reach the server
Server address is https://track.havouza.com:5055
and that is correct.
Firewall has 5055 open and I have tested both with the fw enabled and disabled
Have no more to test
I now also tested with your demo 4 and it is the same result.
Server address is
https://track.havouza.com:5055
and that is correct.
False. This is NOT correct. Port 5055 is not HTTPS.
I have installed the client and configured it. Also opened 5055 in the firewall. The clent status say location updated with a few send failed. But the device always show as offline in my traccar installation. What can I check.