SBS2003/NT4 migration - Trust issue?

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Hello everyone,

I am having a problem with an SBS 2003 upgrade. Briefly, the situation
is as follows:

Our previous IT infrastructure consisted of an NT primary domain
controller, and a backup domain

controller which was also a BDC. I was asked to consolidate these tasks
on to one server running SBS

2003. For various reasons, my manager stipulated that the NT4 domain
name must not be changed. As a

result, my upgrade process was as follows:

1) Install temporary NT4 server on spare hardware, and make BDC
(tempserver)
2) Promote to PDC
3) Upgrade to 2000 and install Active Directory
4) Install SBS 2003 on new server (newserver)
5) Join 2003 server to new AD domain


This all went reasonably well, however I have now hit a brick wall. The
domain is not syncing, and

when I try and force a sync I am told "the network request is not
supported". Some googling suggests

that this is a trust issue, perhaps related to the secure channel used
by the DCs to sync. I have

tried resetting this using netdom, but to no avail. Something in the
event log which might be

pertinent is the error "The RPC server is unavailable". I have verified
that the tempserver and

newserver can both ping each other, so there is definitely a network
route between them.

My questions are:

Am I correct in thinking this is a trust issue?
If so, how can I successfully reset the trust?
And if not, does anyone know what it is?

I've got Event Logs, output from dcdiag and numerous other bits and
pieces that I can post if

necessary.

I will be extremely grateful if someone can advise me on where to go
from here, as I must confess to

being completely stumped!

Many thanks,

Mike

.



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