VMWare ESXi - Hardware monitoring - vSphere host disconnected Recently a client of mine experienced a sudden disconnect of one of their hosts from vSphere Client. A quick check quickly confirmed that the VMs were still running happily along, however the host was "tagged" as disconnected. Forcing a reconnect did not work, so it was time to get my hands dirty and start digging. I connected to the host in question with SSH and changed directory to the location of the syslog files (you do store your logs on a SAN disk right and not on a local drive?). After some quick searches I noticed this entry in the hostd.log file: 2012-12-24T19:01:01.309Z [FFFC2B90 info 'VmkVprobSource'] VmkVprobSource::Post event: (vim.event.EventEx) { --> dynamicType = <unset>, --> key = 1348822881, --> chainId = 761820257, --> createdTime = "1970-01-01T00:00:00Z", --> userName...