Assume that you install the Remote Desktop Connection (RDC) 8.1 client update KB 2830477 on a computer that is running Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1. You remotely connect the computer to a Windows 8.1-based or Windows Server 2012 R2-based Remote Desktop Host server, and then you enable the smart card redirection in the Remote Desktop Protocol (RDP) connection. In this situation, when you try to use the smart card in the remote session, the smart card is not available and you receive the following error message:
WaitForSingleObject: Service is in an unknown state.
CertUtil: -SCInfo command FAILED: 0x80070102 (WIN32/HTTP: 258) CertUtil: The wait operation timed out.
Additionally, you can't establish a connection to a remote computer by using the smart card logon method.