Admin Recovery challenge code input returns a node name from a different client

Technical Articles ID: KB82120
Last Modified: 2023-04-26 09:14:42 Etc/GMT

Environment

Drive Encryption (DE) 7.x

For details of DE-supported environments, see KB79422 - Supported platforms for Drive Encryption 7.x.

Problem

You're unable to gain access to the computer at the preboot authentication screen after you perform an Administrator Recovery.

After you provide the challenge code that's generated at the client to the ePolicy Orchestrator (ePO) administrator, the provided response code from the administrator fails to recover the system.

System Change

The computer was transferred to a different ePO server.

Cause

The challenge code uses the Machine ID for initial identification. This Machine ID changes if the computer is moved and is no longer managed by the same ePO server from which it was first deployed.

Solution

DE 7.1 Update 3 (7.1.3) and later provide the ePO administrator with a new capability to allow systems to be transferred from one ePO server to another, while preserving user assignments and user data. For details, see the following documentation:

KB83186 - Statement regarding the migration of managed encrypted systems from one ePO server to another.
PD25905 – Drive Encryption 7.1 Update 3 and later Client Transfer between ePO Servers Guide.

For product documents, go to the Product Documentation portal.

Workaround

For details, see KB73184 - How to obtain the Key Check Value requested by the Reassociate key option.

Related Information

Machine Keys
The key that encrypts the hard disk sectors must be protected. These keys are referred to as Machine Keys. Each system has its own unique Machine Key. The Machine Key is stored in the ePO database to be used for client recovery when required.

For answers to other migration questions, see KB79784 - FAQs for Drive Encryption 7.x.

Affected Products

Languages:

This article is available in the following languages:

Knowledge Center

Admin Recovery challenge code input returns a node name from a different client

Environment

Problem

System Change

Cause

Solution

Workaround

Related Information

Affected Products

Languages:

Title

Title

Knowledge Center

Admin Recovery challenge code input returns a node name from a different client

Environment

Problem

System Change

Cause

Solution

Workaround

Related Information

Affected Products

Languages:

Choose your region

Title

Title