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What could be the reason to get the message “Server does not have an instance certificate assigned” when Ecostruxure OPCUA Server Expert start?

At the start-up of EcoStructure OPCUA Server Expert, the following message can appear :

This message could appear when the following folder doesn’t have the right in R/W :
C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys

Please check the "everyone" right as followed :

The product line impacted is EcoStruxure OPCUA Server Expert version 2.01 and above

Released for:Schneider Electric Global

Published on:11/18/2021Last Modified on:11/18/2021

What could be the reason to get the message “Server does not have an instance certificate assigned” when Ecostruxure OPCUA Server Expert start?

At the start-up of EcoStructure OPCUA Server Expert, the following message can appear :

This message could appear when the following folder doesn’t have the right in R/W :
C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys

Please check the "everyone" right as followed :