I have a Windows 7 Professional laptop in the US which is connected to a Windows Server 2008 R2 Domain in Australia via Hamachi VPN software, the laptop has proven unreliable in retaining the connection to the domain with the error "trust relationship failed between this workstation and the primary domain", it is an easy fix to remove from domain and re-add it however this has happened three times within a week and I would really like to understand what causes the error in the first place rather than fix the symptoms. We also have a Windows Server 2008 RC Server in the US connecting to the Domain in Aus in the same way, (across Hamachi VPN), and this has been fine??
To sumarise, all the information I've been able to find point to how to re-join a computer to a domain however I'm after possible causes as to why this happens with a view to prevention rather thana cure.
This issue can occur if the computer's machine account has the incorrect role or its password has become mismatched with that of the domain database. Please refer to the following articles to troubleshoot the issue.
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