Installing child domain in Windows 2012 R2 RTM causes replication failure

After Installing child domain in Windows 2012 R2 RTM causes the replication to fail.

Symptoms : Event ID 1202, 1126 and 1645

Evet ID 1202

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Event ID 1126

Event ID 1645

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After installing new child domain and join it to the Root domain

To show the child domain’s DNS partition enlisting use

Dnscmd /enumdirectorypartitions

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Add child domain’s DNS to the forest

dnscmd /enlistdirectorypartition

First Solution

Make sure windows is full updated, After you apply Windows update the problem should be gone.

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If not check the second solution:

Second: Make sure that your Child administrator and root administrator’s passwords are not identical.

Third: Make sure trust is set properly using the following command

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