The RD Session Host Server is configured to use a certificate that does not contain an Enhanced Key Usage attribute of Server ...

The RD Session Host Server is configured to use a certificate that does not contain an Enhanced Key Usage attribute of Server Authentication. %1 The SHA1 hash of the certificate is in the event data. The default certificate will be used for RD Session Host Server authentication from now on. Please check the security settings by using the Remote Desktop Session Host Configuration tool in the Administrative Tools folder.