All Veeam products are prepared for this change and utilize Packet Integrity DCOM authentication level.
However, if the underlying Windows operating systems do not have the necessary security updates, this can lead to different authentication levels being used for DCOM connections, resulting in authentication failures. For instance, one Windows machine may have the hardening changes disabled due to the absence of the installed update, while another Windows machine may have the DCOM hardening enabled because the update is installed. When these DCOM authentication failures occur, Event #10036 will appear, displaying the following message:
Please raise the activation authentication level at least to RPC_C_AUTHN_LEVEL_PKT_INTEGRITY in client application