RDP to 2012 from 2003

I can't RDP to server  2012R2 from 2003. I can RDP fine from a Windows 7 machine. I know something needs to be changed on 2012 but am unsure what.
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StuartTechnical Architect - CloudCommented:
Remote access settings done require NLA, you can find this in server manager, remote access

StuartTechnical Architect - CloudCommented:
Dont* require
In Win 2012 Network Level Authentication (NLA) for RDP is enabled by default. Win2003 it is not. You can either disable it on the Win 2012 server or update the RDP client on Win2003. It's possible Win 2003 won't support NLA for RDP.  To disable it on Win2012 server, type gpedit.msc in the RUN box. Then navigate to:  Computer Configuration\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Require user authentication for remote connections by using NLA: Disable

I don't recommend leavning it disabled. This setting is to eliminate M-I-M attacks

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Windows Server 2012

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