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verify your environment meets these requirements supported hardware {{k3}} , application version 6 3 1 x or later, with initial setup completed (including loading a platform master key and network configuration) supported operating systems windows 2012 r2 (6 3 9600) and later required infrastructure a windows server joined to your active directory domain that acts as the enterprise ca a windows server joined to your active directory domain that acts as the network device enrollment service (ndes) service required access an account on the kmes with administrator permissions to create roles, identities, tls pki, and update system settings local administrator/root access on the windows machines acting as the enterprise ca and ndes servers network and firewall allow outbound tcp port 2001 (default host api port) from the enterprise ca server to the kmes series 3, specified by fqdn (for example, kmes example com ) or cidr (for example, 10 0 0 0/24 ) tls inspection or ssl proxies can break mutual tls handshakes exempt the kmes fqdn(s) from inspection configure the kmes series 3 with an fqdn so the exemption applies