A Microsoft DCOM update may cause an issue for some users. When running a WMI check, users may receive the following error on the machine being scanned by WMI:
"The server-side authentication level policy does not allow the user [username] SID ([SID]) from address 18.104.22.168 to activate DCOM server. Please raise the activation authentication level at least to RPC_C_AUTHN_LEVEL_PKT_INTEGRITY in client application.
The following link provides more information from Microsoft: