Ensure VMware VirtualCenter Management Webservices services are started .
Try restarting the the watchdog services " /etc/init.d/sfcbd-watchdog restart "
If not try removing the host from VC and re join back .
Ensure VMware VirtualCenter Management Webservices services are started .
Try restarting the the watchdog services " /etc/init.d/sfcbd-watchdog restart "
If not try removing the host from VC and re join back .