Proface Connection Key Reset Access

If the hardware key shows “Locked” or “Invalid”:

For users of the Pro-face Remote HMI application, resetting the server connection password can be done via two methods:

Trial keys cannot be reset – they are time-limited. Request a new trial from Pro-face support. proface connection key reset

The Connection Key is a feature, not a bug. It protects your intellectual property. However, when it locks out the rightful owner, knowing how to perform a is essential for every maintenance engineer.

Open the project file in GP-Pro EX that corresponds to the HMI. If the hardware key shows “Locked” or “Invalid”:

You have the original GP-Pro EX file, but you forgot the key you set 6 months ago.

This is the most common method for achieving a without wiping the entire unit. It protects your intellectual property

A reset is usually needed when the key is locked due to multiple failed logins, PC changes, or license transfer errors.

If you have physical access but cannot enter the Offline Menu because the key locks you out, use the from a PC.

Resetting a is a critical maintenance task for ensuring secure communication between your HMI and development software like GP-Pro EX. This key acts as an authentication barrier for operations such as sending, receiving, or comparing projects . Methods to Reset or Change the Connection Key