Cannot RDP to a HyperV Terminal Server

A previous Network Manager set up a Win2008R2 HyperV Server (host) running Remote Desktop Gateway Server.
On this he created a virtual Win2003 Terminal Server (guest)

The firewall is turned off on the the guest.
Remote Desktop is allowed in System Properties on the guest.
There are no group policies stopping Remote Desktop on the guest.
All services for Terminal Services are running on the guest.

I can ping the guest Terminal Server and browse to its shares \\TerminalServer\c$ but I cannot open A Remote Desktop Session.
I cannot even connect from the same LAN as to avoid routing issues and the RD Gateway server policies.
The error i get from the local LAN is attached.

Any help would be hugely appreciated..
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
There is nothing attached.
Thomas WheelerCommented:
Try turning the firewall on and adding excepting for rdp 3389. Also what type of Antivirus are you running?
matedwardsAuthor Commented:
Apologies.. uploaded but didn't embed the jpg.

What would be the advantage of enabling firewall and adding an exception when I've turned the firewall off completely.?

The Anti-virus is AVG and I've disabled it.

Remote Desktop Error
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
The best way to turn off the firewall is to have the service running and then go to the firewall configuration and select if you want it enabled for domain, private or public networks.  If you go and turn off the service then your system will be in a state where things will not work and you will be required to reboot.

You mentioned the firewall is off, is it off on the Hyper-V host, on the VM or on both?
matedwardsAuthor Commented:
Oh, I see.. it is off on the VM.. not on the host..
matedwardsAuthor Commented:
Sorry, that' a bit confusing.. it's turned off on the VM and still enabled on the host
David Johnson, CD, MVPOwnerCommented:
in hyper-v are both running? is the network switch being used an external switch?
matedwardsAuthor Commented:
Hello guys.. thanks for your input but I have found a solution.

Every time I went into the Properties of the RDP connection in Terminal Services Configuration (TSC) and clicked on the adapter tab TSC crashed. When I tried to delete the rdp connection within TSC it crashed again. I thought there must be an vNIC adapter problem as the physical NIC seemed fine.


1) turned off the guest VM..
2) un-assigned the vSwitch from the vNIC (of the guest) in Hyper-V Manager.
3) Deleted the entire vSwitch from within Hyper-V Manager.
4) Rebooted the Host
5) recreated the vSwitch in Hyper-V Manager
6) re-assigned the vSwitch to the guest VM.
7) gave the vNIC it's static ip address from within the guest VM.

After that I created a new RDP-TCP connection from within TSC (in the 2003 guest), it did not crash and worked again.

Many thanks for all your help.

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matedwardsAuthor Commented:
I have explained my solution above..
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