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    Hi Derrick,

    The process to manually (not GPO based) unblock a DNS/DC server is:

    1. Enable DNS RPC access by enabling the following inbound Firewall rules:

    a) DNS Service (RPC)

    b) DNS Service (RPC Endpoint Mapper)

    2. Enable remote management access by enabling the following inbound Firewall rules:

    a) Remote Service Management (RPC)

    b) Remote Service Management (RPC-EPMAP)

    3. Enable Remote Event Log Management RPC access by enabling the following inbound Firewall rules:

    a) Remote Event Log Management (RPC)

    b) Remote Event Log Management (RPC-EPMAP)

    4. Add the IPAM machine acct to the Event Log Readers domain security group. See the example below. This view is from Active Directory Users and Computers \ contoso.com \ Builtin \ Event Log Readers:

    ipam manage dc encounter the unblock ipam error_unblock ipam access

    Also, there should be a Details tab at the bottom that summarizes whether or not the correct firewall ports and the Event Log Access status are unblocked. Does this say that one or both are blocked?

    ipam manage dc encounter the unblock ipam error_dc_02

    Thanks,

    -Greg