AFAIK, you should rename one of the domains to avoid NetBIOS name clash.
More at https://learn.microsoft.com/en-us/answers/questions/313512/ad-trust-between-two-domains-with-same-netbios-nam
hth
Marcin
Problem setting up a trust between two DC
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 49%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERK%3C/text%3E%3C/svg%3E)
Rizal Khalit
0
Reputation points
We are trying to setup the trust between two DC (a.sg and a.com.sg).
Name Suffix in a.sg are as follow:
a.sg
a.com.sg
Screenshot 2024-02-16 at 9.55.52 PM.png
Screenshot 2024-02-16 at 3.42.04 PM.png
Windows for business | Windows Client for IT Pros | Directory services | Active Directory
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 38%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMP%3C/text%3E%3C/svg%3E)
Marcin Policht 92,380 Reputation points MVP Volunteer Moderator2024-02-17T21:02:40.02+00:00