Version 5.2
sorry the second comment, is that now units come online also after 40 to 50 seconds.
All good now. I reinstalled and its working now. The issue was I restored a backup before starting traccar service on a fresh install. I was suppose to start the service and then restore the backup.
When opening legacy page, units take about 30 to 40seconds to come online. This was an issue with version 5.1 however there was a fix on the preview version and that resolved it, but in the new version 5.2 to issue came back. Secondly the new interface web page, units are offline, and legacy its up.