When installing a 6.5 server into a 5.1 tree, we got the following error:

There was an error during the W0 portion of the install. Error code: java.lang.Exception: -672.

When looking at the W0 object, the new server is not a NDS trustee. I am not able to assign trustee rights even as administrator. I tried to fix this using PKIDIAG on the new server, but could not log in with the following error:

Login not successful. Error code -255.

I also can not log into NoRM - seems to be a similar security issue.

Any guidance is appreciated.