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I've recently tried to add a 2nd PC to my router, so that i can use RDP on this PC too. The 1st one already works, as it's using the standard methods (default RDP port 3389, etc.)

So, currently the 1st PC is open for any connection, i can just connect to it with the external IP address. No problem.

The second PC however;

  • I have added to my router listening to port 3390
  • I have changed the listening port to 3390 in HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp\PortNumber
  • I have checked if my Windows Firewall or AVG Firewall is blocking or disabling port 3390
  • I have tried to connect through EXTERNAL_IP:3390 with RDP
  • I have rebooted my router, and PC multiple times to double check.

And still, i can't get this thing working.

Any idea's?

OS: Windows 8.1

Router: Cisco EPC3928AD

Thanks in advance,

BBQ.

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  • IIRC, port 3390 was no good with RDP, some sort of client limitation or something.
    – Daniel B
    Aug 10, 2014 at 1:00
  • @DanielB Weird, cause almost any site i've searched on (even the microsoft support site) suggest to connect any second device with an incremented portnummer to 3389; 3390.
    – BBQ.
    Aug 10, 2014 at 1:23
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    just to be sure, you router is forwarding 3390 to the IP of the 2nd pc?
    – Keltari
    Aug 10, 2014 at 3:52
  • That's correct.
    – BBQ.
    Aug 10, 2014 at 11:27

1 Answer 1

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Windows 8.1 does not have support for incomming RDP connections. You will need Windows 8.1 Pro to support incomming RDP connections. Upgrade to Windows 8.1 Pro and you will be able to connect to that PC.

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