Error message:
Issue detected on <HOST> in <DOMAIN> vmsyslog logger <SYSLOG_SERVER>:514 lost #### log messages
A potential cause is that your hosts/vcenter do not have network connectivity to the syslog server
To test for this, run the following command from VC/host:
$ nc -zv <SYSLOG_SERVER> 514
Fix the network connectivity between host/VC network and syslog network.