In this post, you’ll learn about the Windows System Error RPC_S_UNSUPPORTED_AUTHN_LEVEL (0x71D)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 1821 RPC_S_UNSUPPORTED_AUTHN_LEVEL (0x71D)]
Why do you receive the System Error Error Code 1821 RPC_S_UNSUPPORTED_AUTHN_LEVEL (0x71D)] in Windows?
The requested authentication level is not supported.