In this post, you’ll learn about the Windows System Error RPC_S_UNKNOWN_AUTHN_LEVEL (0x6D4)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 1748 RPC_S_UNKNOWN_AUTHN_LEVEL (0x6D4)]
Why do you receive the System Error Error Code 1748 RPC_S_UNKNOWN_AUTHN_LEVEL (0x6D4)] in Windows?
The authentication level is unknown.