Windows Server 2012 - Domain network detected as Public

Issue

Windows Server 2012 connected to a local domain network reports network type as a "Public Network". This causes Windows Firewall to block some network services that are expected to work on a domain network (i.e. Remote Desktop).

Windows Server Network and Sharing Center

Resolution

The issue was caused by a missing "DNS suffix" in Network Adapter properties.
Network Connections > <Ethernet Adapter> > Properties > IPv4 > Properties > Advanced > DNS

Advanced TCP/IP Settings

"DNS suffix for this connection" field should have your local domain name. For the changes to take effect you need to restart "Network Location Awareness" service.

Domains Networks > Connected

Windows Server 2012 domain

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