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TN - 1277 Platform Fails to Deploy with Access Denied


This article from InSource shows how to resolve a problem with platform deployment for AVEVA Application Server.  The deployment fails to deploy with an Access Denied WWCdi error message.  A deployment failure message related to the login and/or password may also be seen.

  • Author: Rich Brooks
  • Published: 8/17/2022
  • Applies to: Application Server 2020 R2 SP1 and higher


The platforms failed to deploy for Windows 10 workstations only.  An access denied message was found in the SMC Log Viewer.


Login and/or Password Mismatch error messages were sometimes seen during deployment instead of the Access Denied message.

A DCOM error was found in the event viewer at the time of the platform deployment.


Searching on RPC_C_AUTHN_LEVEL_PKT_INTEGRITY found the Microsoft Update KB5004442 - DCOM Hardening.

The DCOM Hardening key was disabled in the registry to resolve this issue.


  • Value Name: "RequireIntegrityActivationAuthenticationLevel"

  • Type: dword

  • Value Data: default = 0x00000000 means disabled. 0x00000001 means enabled. If this value is not defined, it will default to enabled.

Restart the device after setting this registry key for it to take effect.