Solution : https://service.sap.com/sap/support/notes/609603 (SAP Service marketplace login required)
Key words : 
left pane           cluster-data ->instance_id<num> -> dispatcher_id<num> -> services -> p4 3, single network interface card installed, single ip address multiple times, single hostname\ip address defined, network interface cards installed, menu choose file->apply7, menu choose file->apply, message indicating connection problems, allowed ip addresses limits, public ip address assigned
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