The error:

A general system error occurred: The VMotion failed because the ESX hosts were not able to connect over the VMotion network.  Please check your VMotion network settings and physical network configuration.

Happens when your vmkernel port cannot connect to the vmkernel port on the remote Vsphere ESX host. In order to correct this you’ll have to ensure that your tcp-ip network settings are correctly defined and you can use the command vmkping with root privileges: