I simply can NOT connect from NSAdmin to the Engine to set it up

Ot accepts username/password, goes to the next screen stating that the
Engine is in Setup mode, asks to authenticate again & this time gives error:

eDirectory NWDSCCODE_SVC_PARTIAL [0x889a]

The Engine is installed on OES2 SP3 with no-replica (but with eDirectory

Anybody any idea?

In case, I have .c=UK in the context (and over the years I seen few
softwares having problem with it)