Fives Machining Systems Global Services (Fond du Lac, WI, US) has introduced a new remote diagnostics capability that allows machine operators to connect with Fives Cincinnati and Fives Giddings & Lewis experts via secure CNC screen sharing to diagnose and overcome many stoppages within minutes. Diagnostic Communication System (DCS) is now standard on all new Cincinnati and Giddings & Lewis machine tools and composite systems. It is also available as a system upgrade for installed machines with a PC-based HMI on Fanuc, Siemens and Heidenhain controls. The enabling software, TeamViewer (from TeamViewer GmbH), establishes an encrypted, password-protected connection to the customer's CNC over a VPN (virtual private network). A new and unique password is generated by TeamViewer for each session. Legacy CNCs can access diagnostic service using a connected laptop to run TeamViewer software.