Solution : https://service.sap.com/sap/support/notes/1113274 (SAP Service marketplace login required)
Key words :
[port]/dtr/system-tools/administration/nameserverconfiguration4, [port]/dtr/system-tools/administration/nameserverconfiguration3, [port]/dtr/system-tools/administration/nameserverconfiguration, [port]/dtr/sysconfig/support/namereservationlist8, [port]/dtr/sysconfig/support/namereservationlist, design time repository reason, dtr server finalizes / reverts, inside dtr activities, dtr background task, netweaver developer studio
Related Notes :
1119286 | Final name reservation of development objects |