In this post, you’ll learn about the Windows System Error RPC_S_COOKIE_AUTH_FAILED (0x729)] and the reason why you are receiving the error message
How does this Error in Windows Look like?
Error Code 1833 RPC_S_COOKIE_AUTH_FAILED (0x729)]
Why do you receive the System Error Error Code 1833 RPC_S_COOKIE_AUTH_FAILED (0x729)] in Windows?
HTTP proxy server rejected the connection because the cookie authentication failed.