Solution : https://service.sap.com/sap/support/notes/1486692 (SAP Service marketplace login required)
Key words : 
enterprise portal 592085 - installing http connect service 605795 - windows terminal server connection, /usr/sap/<sid>/<instance>/j2ee/cluster/server /log/, system administration > monitoring > knowledge management > component monitor, port/sap/monitoring/componentinfo http, port/sap/monitoring/systeminfo provide, terms knowledge management, repository service startup, km component monitor, http connection, enterprise portal
Related Notes : 
       
| 1385272 | KM Content is unavailable | 
| 1095284 | Edit Locally does not work - troubleshooting | 
| 894884 | Hot-deployment of KMC components - Clarification | 
| 815891 | KMC NW04 / NW7.0: Trace information | 
| 605795 | Windows Terminal Server connection in remote support | 
| 592085 | Installing HTTP Connect service | 
| 494980 | Remote Support for an Enterprise Portal | 
| 83020 | What is consulting - What is support? |