My VP3600 displays "Need Client Key". What does it mean?

The VP3600 is an SRED device. SRED devices require a DEK (data encryption key) to function. Without a DEK injected into the reader, it will only display need client key. Typically the DEK is specified and injected at the time of purchase by ID TECH or a distributor. Contact the provider to learn of your options to get your unit key injected.