Solution : https://service.sap.com/sap/support/notes/455756 (SAP Service marketplace login required)
Key words :
additional key words system_reset_rfc_server, patch level 325 basis release 4, kernel basis release 6, java connector jco, user parameters disappear, parameter values determined, user master record, pooled rfc connections, patch level 675, patch level 929
Related Notes :
| 110058 | RFC logon: User parameter not set |