Solution : https://service.sap.com/sap/support/notes/944615 (SAP Service marketplace login required)
Key words :
rfc_no_authority abap runtime error occurs, abap runtime error, rfc call occurs, update work process, source ip address, remote function call, affected rfc destination, sapsys user andthe, logon screen output, rfc logon screen
Related Notes :
93254 | RFC short dump RFC_NO_AUTHORITY |
51367 | RFC logon under different user or client |