2903668 - DBCO connection to an External SQL Server Database failed with "TCP Provider: An existing connection was forcibly closed by the remote host"

• Remote database is running
• DBCO connection fails with "TCP Provider: An existing connection was forcibly closed by the remote host"

     Following is the error example: (SAP SQL Server 2012, External DB is SQL Server 2016)
     C ODBC Driver chosen: SQL Server Native Client 11.0 native
     C
     C ERROR: -1 in function SQLConnectWithRetry (SQLConnectWithRetry)
     C (10054) [08001] [Microsoft][SQL Server Native Client 11.0]TCP Provider: An existing conn
     C
     C native_db_err 10054 severity 0 errclass set to DBSL_EC_RESTART
     C sl_glob.dbsl_ca.errclass set to DBSL_EC_RESTART
     C ERROR: -1 in function SQLConnectWithRetry (SQLConnectWithRetry) 
     C (10054) [08001] [Microsoft][SQL Server Native Client 11.0]Client unable to establish con

     B ***LOG BY2=> sql error 10054 performing CON
     B ***LOG BY0=> TCP Provider: An existing connection was forcibly closed by the remote host
     [dbds 879]

• MS SQL Server Database
• SAP application running on Windows Server

 Client 10.0  , KBA , BC-DB-MSS , SQL Server in SAP NetWeaver Products , Problem