Solution : https://service.sap.com/sap/support/notes/774116 (SAP Service marketplace login required)
Key words : 
visual administrator   server -> services -> sap xi af cpa cache, sapinst sapinst_use_hostname=<virtual host>sap j2ee engine - configuration--------------------------------, - hklm -> software -> sap -> <sid> -> environment   - environment, microsoft cluster server reason, solution sapinst--------property sapinst_use_hostname, sap note 724452 - configuration&tuning, installing sap exchange infrastructure 3, service release nw04 sr1usage, saplocalhost   profile parameter saplocalhost, sapinst property sapinst_use_hostname
Related Notes : 
       
| 803018 | Central note for NetWeaver04 High Availability capabilities | 
| 786224 | SAP XI 3.0 Installation in a MSCS Environment | 
| 773830 | FQHN determination in ICM | 
| 757692 | Changing the hostname for J2EE Engine 6.40/7.0 installation | 
| 724452 | Central Note for SAP NetWeaver Java Server 04/2004s | 
| 697535 | Add. Info. on applying Support Packages (Web AS Java 6.40) | 
| 609603 | Problems with Multiple NICs and SAP J2EE Engine |