When you attempt to log on to a Windows NT server, workstation, or domain controller using account credentials from a trusted domain, you may receive the following error:

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This problem will occur if the trust was broken at the accounts domain (trusted), but not the resource domain (trusting).

NOTE: You can use the Microsoft Windows NT 4.0 resource kit utility Netdom.exe file to check both the status of the trust and re-create the trust.

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Break the trust in both the account and resource domains, and then re-establish it on both sides.

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Break the Trust Relationship

1.	To break the trust on the primary domain controller (PDC) in the resource domain, click Start, point to Programs, point to Administrative Tools, and then double-click User Manager for Domains.
2.	On the Policies menu, click Trust Relationships.
3.	Select the accounts domain from the Trusted Domains list box and click Remove.
4.	When prompted to complete the removal, click Yes
5.	At the PDC in the accounts domain, click Start, point to Programs, point to Administrative Tools, and then double-click User Manager for Domains.
6.	On the Policies menu, click Trust Relationships.
7.	Select the resource domain from the Trusting Domains list box and click Remove.
8.	When prompted to complete the removal, click Yes

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Re-establish the Trust Relationship

1.	On the PDC in the accounts domain, click Start, point to Programs, point to Administrative Tools, and then double-click User Manager for Domains.
2.	On the Policies menu, click Trust Relationships, and then click Add next to the Trusting Domains list box.
3.	In the Add Trusting Domain dialog box, type in the resource domain name. Enter a password that you will use for the resource domain to access the accounts domain, retype the password in the Confirmation field, and then click OK.
4.	On the PDC in the resource domain, click Start, point to Programs, point to Administrative Tools, and then double-click User Manager for Domains.
5.	On the Policies menu, click Trust Relationships, and then click Add next to the Trusted Domains list box.
6.	In the Add Trusted Domain dialog box, type in the accounts domain name and the password that you supplied in step 3.
7.	Click OK in the Trust Relationship With accounts domain Successfully Established dialog box.

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