Devices are Offline

I had set up the Traccar setup on my virtual Machine Ubuntu.
traccar Dashboard is also opening but When I add a device it's not getting shown Online.
Logs also Don't show anything.
if my device had some problem then it wouldn't have run on my other Ip.
I have another Ip on which I had set up Traccar and those devices are connecting well but on this new one Why device are not get connected properly
New Traccar Ip =http://13.235.29.43:8082/
Old Traccar Ip =http://3.108.199.67:8082/

Follow the troubleshooting guide.

I have checked those settings
it's fine
Ports are open process is running too, then why devices are offline.

If you followed the guide, you should know exactly where the problem is.