Trying to connect to SQL server 2014 on Server 2012. Locally it works fine, application DB is running and clients are working on DB. When I try to connect via Server Management Studio I get the following error.
Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement.
I found the following entries in logs.
The certificate received from the remote server was issued by an untrusted certificate authority. Because of this, none of the data contained in the certificate can be validated. The SSL connection request has failed. The attached data contains the server certificate.
A fatal alert was generated and sent to the remote endpoint. This may result in termination of the connection. The TLS protocol defined fatal error code is 48. The Windows SChannel error state is 552.