Solution : https://service.sap.com/sap/support/notes/1595231 (SAP Service marketplace login required)
Key words :
SMD Agent Connection refused Can't get Socket P4 port
Related Notes :
| 1448655 | Inst. 7.30 - Diagnostics Agent installation |
| 1368413 | Inst. 7.20/7.12 - Diagnostics Agent installation |
| 1234387 | Inst. 7.1 EhP1 - Diagnostics Agent installation |