Powering The Shell

An exception of type System.InvalidOperationException was
thrown. Additional exception information: The current server cannot be
joined to the farm because the set of installed products does not match
the products installed in the farm.

I looked at the logs and found this error:

The current server cannot be joined to this farm because
the set of installed products does not match the products installed in
the farm. The license state for the current server doesn’t match the
farm’s license state.

After validating the current and new servers products I found that
the product key that was provided was for a SharePoint Enterprise and
the current one was running Standard Edition. In order to join a server
to the farm you need to have the same products installed on the new
server.

Here is a quick way to validate the products installed on a server:

1. Run regedit

2. Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\15.0\WSS\InstalledProducts

3. The product GUIDs are as follows:

C5D855EE-F32B-4A1C-97A8-F0A28CE02F9C – “SharePoint Server 2013”
B7D84C2B-0754-49E4-B7BE-7EE321DCE0A9 – “SharePoint Server 2013 Enterprise”
9FF54EBC-8C12-47D7-854F-3865D4BE8118 – “SharePoint Foundation 2013”

4. Replace with the necessary product GUID.

5. Enjoy