Hello @WayneLLL
If you are trying to make the installation multiple times essentials role might been already installed in Essentials and it might use the post config wizard on the first boot so try a clean install with new configurations.
Some prechecks that you can do to avoid this is listed below, try your hands on them and see if they are helpful.
-Verify that the network adapter on the server is connected to a router by a network cable.
-If the server has more than one network adapter, verify that only one network adapter is enabled.
-Verify that your server hardware meets the minimum requirements. For information about hardware requirements
-If you received the Windows Server 2012 Essentials installation DVD from MSDN, verify that the DVD is valid by checking the SHA1 sum.
Hope this resolves your Query!!
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