Error 0xe1100012: Cannot Initialize Migration agent on Host ""
Error 0x80070005. Access is Denied
This issue is related to Microsoft cumulative updates from June and July 2021 (relating to DCOM Server Security Hardening).
Registry setting to enable or disable the hardening changes.
Use the following registry key to disable the hardening:
The registry key should be added using the following command on the target domain controller rather than being manually created in regedit:
REG ADD "HKLM\SOFTWARE\Microsoft\Ole\AppCompat" /v "RequireIntegrityActivationAuthenticationLevel" /t REG_DWORD /d 0x00000000
The domain controller must be restarted after the change.
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