Solution : https://service.sap.com/sap/support/notes/869322 (SAP Service marketplace login required)
Key words :
language/code page vector stored, pointing tothe unicode rfc server, language/code page vector, language/code page vectors, note display current settings, -unicode client system define, legacy rfc destination assigned, unicode rfc server, server side dev_wn, terms rscplangcplistgetcpdstrscplangcplistgetcptrysystem_failurecommunication_failure reason
Related Notes :
814707 | Troubleshooting for RFC connections Unicode/non-Unicode |
302063 | Correspondence Language |
19466 | Downloading SAP kernel patches |