NW65SP8
Step-1: Hard remove Edirectory from the Server:
unload ds
load ds -NDB
nwconfig -DSREMOVE
reboot server

Step-2:
install new TREE:
TREENAME: TTT
O: O=bbb
Server: TTTT
admin.bbb with password="qwerty"
reboot

Step-3:
Result: can not log in to the server:
- from XP
- from ServerConsole ( pkidiag with error "-601")
- from NWCONFIG ( remove edir with error: "user object ".admin.bb" could not be authenticated.
Verify that the complete name is entered correctly and that you have the correct password" )
- from https://server:8009 and https://server/nps/iManager

Please, Help me

Serg