Failed to Add a Domain - Domain Controller Not Reachable

Enable Remote Administration in the Domain Controller

For OpUtils to connect to the Domain Controller remotely you need to enable Remote Administration in the Domain Controller. Follow the steps below in the Domain Controller:

1. Click Start --> Run
2. Type gpedit.msc and click OK
3. Expand Computer Configuration --> Administrative Templates --> Network --> Network Connections --> Windows Firewall --> Domain Profile.
4. Right-click Windows Firewall: Allow remote administration exception, and then click Properties.
5. Click Enabled, and then click OK.

Correct DNS Errors

Check whether the DNS Server has been updated with the correct IP Address of the Domain Controller. Update the DNS record to correct the IP Address of the Domain Controller. Alternatively, try specifying the IP Address of the Domain Controller when you add the domain.

Check if the Domain Controller is up and running

Check whether the Domain Controller is up and running when you add the domain in OpUtils. If it is running, check whether you are able to ping the Domain Controller from the computer where OpUtils is installed. If not, check the traceroute or other network problems and correct them before you add the domain.

Applies to: IP Address Manager

Keywords: Active Directory, Windows AD, Domain Controller, Remote Administration Exception