On Vmware ESXi 6.7, I think I had opened up SSH and was playing with various things like VMRC (downloading mac app, etc).
End result was that there were a slew of attempted log-ins, and also Edit Settings on the VM was not loading.
-Disable SSH, which stopped the log-ins
-Shutdown all VM’s
-Put the host into Maintenance mode – this is best practice
-Restarted the ESXi host
-Took host out of maintenance mode — If you forget, then the VM’s don’t load completely, especially the networks
-Edit settings are now OK