FIXED "the trust relationship between this workstation and the primary domain failed" error


If the machine/workstation is in another network than the DC, there is a possibility that the switch/router blocked netbios brodcast, so before you start add  to lmhosts (exemple: in C:\Windows\System32\drivers\etc\ create file named lmhost and put in  "mydc #PRE" record ) file netbios record for DC so computer could resolove  NetBIOS name of DC.


Now we can start 🙂

Go to change the domain, and simply change it from the DNS domain name (e.g. domain.local), to the netbios domain name (e.g. DOMAIN). You will probably need to be on the same broadcast domain (LAN segment), i.e. not over a VPN or WAN, for the netbios domain to be found (unless you have WINS running I suppose).


So, the machine is joined to domain.local, but the secure channel is broken. I just go to the ‘Computer Name’ tab of ‘System Properties’, click Change, and backspace out the .local from the domain name and press OK. It’s like I’m joining a different domain but it’s the same one really. You get the “Welcome to the domain. You must restart this computer for the change to take effect” message. Reboot and it’s all done. As usual the DNS domain name will be shown on the computer name tab after the reboot. Nothing has changed except that the secure channel has been re-established.


dpejic has written 84 articles

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