One of the possible options is related to a latest hardening update, described here: https://support.microsoft.com/en-us/topic/kb5004442-manage-changes-for-windows-dcom-server-security-feature-bypass-cve-2021-26414-f1400b52-c141-43d2-941e-37ed901c769c
This requires to set packet integerity level on both server and client:
An alternative is to disable this hardening, by creating a DWORD value RequireIntegrityActivationAuthenticationLevel in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole\AppCompat with value: 0