Error: Unable to Connect to the MKS while Connecting to ...
kb.vmware.com › s › articleApr 07, 2021 · The error "Unable to Connect to the MKS" occurs when: Attempting to connect to the remote console from vCenter Server to a virtual machine. When connecting to the remote console from different subnets through a firewall. When name resolution for the ESXi or vCenter FQDN does not return the correct or valid IP address. Resolution