If this is a brand new deployment then you should check that all the pre-requisites are in place and you do not conflict on them:
- Check that the appliance is able to reach the NTP Server.
- Check that you do not have any duplicate A or PTR records pointing to the IP of NSX-T.
- Login using ssh and run get services status and look for stopped services.
- Login into root and look for /var/log/syslog file to look for some errors.
For some reason it was deployed in different time zone where we get to re-configure the NTP-server and reboot the appliance and it worked just fine