Requirements to connect ADUC to remote Domain

What are the ports that should be opened

Here you go
https://video2.skills-academy.com/en-us/troubleshoot/windows-server/identity/config-firewall-for-ad-domains-and-trusts

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We have joined several computers to the WT domain. These computers do not have any policies specifically applied to them except for the default policies. When I look at these computers in ADUC and do a right-click Manage on the computer I get an error on one computer that says the computer “cannot be managed. The network path was not found.” On another I get “Event viewer cannot connect to computer. RPC server is unavailable” but the manage console opens. What am I missing?”

Almost certainly a firewall setting. We’re not enabling firewall rules SMB/RPC/etc by default at the domain level since we’d basically have to open it to all of campus and thats just too widely spread.
If they are all Win7 boxes, and assuming you have a limited number of machines where you do your system administration, create a policy with a custom rule in the Advanced firewall that allows all Ports and Programs inbound from the IP’s of your system administration boxes.

reference:https://www.activedirectory.ncsu.edu/ou-admins/tools/aduc/

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Hope this information can help you
Best wishes
Vicky

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Vicky

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Vicky