I am setting up RDS via application proxy. All the roles are installed on the same server.
On connecting with app proxy page getting error "We couldn't connect to Remote PC because of a security error."
On checking logs found below line :
ConnectionInitiationState(NORM): There is not sufficient authentication information to use the RDSTLS protocol. Disabling...
Connection(ERR): The connection generated an internal exception with disconnect code=GenericSecurityError(16), extended code=<null>, reason=During RDP connection initiation, the remote server reported negotiation failure , error=2