RDP WinXP to 03svr not working

October 13, 2009 at 15:01:31
Specs: Windows 2003 svr, 1024
The 2003Svr has 2 NICs, i have forwarded port 3389 to the NIC that is connected to the internet.
Both the WinXP and 03Svr are in my house. I use the ip address that i get from my ISP (ex: to enter into the RDP computer name from the WinXP computer.
I have remote connections enabled on the 03svr!!! why can i not get in?
note: VPN works between these 2 computers

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October 13, 2009 at 16:18:37
So how are you, from home lan, getting out to the internet, back in thru the wan port which then forwards you to the server?

This is like trying to go out the same door you are going in.

Now if you went to a neighbors or internet cafe you should have no issues.

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October 13, 2009 at 19:21:16
it is still not working!! Is my setup correct? it must be correct because VPN is working from the same computers!

i make a VPN connection and go to explorer, enter \\servername\sharename and i am able to see the share.
RDP is basically doing the same thing, why is it not worrking?

if the NIC that is connected to the internet is assigned by the router, and the router is configured to forward port 3389 to this NIC, how does the internal NIC using get involved?

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October 13, 2009 at 19:47:58
do you know what a false positive is?

You are assuming because your vpn works [and I don't know how if would on the lan which is what you are saying] that rdp should work because vpn does.

Think about this a second. Can you bounce from your routers wan port back to the local lan?

of course not.

the lan packets would be dropped [if they made it to the wan interface] since they would not be directed to the gateway.

Remember now that in routing the gateway is the choice of last resort. No one answers locally so lets shove it out the gateway and hope someone answers. This is a basic of routing.

Have you tried your vpn from somewhere else than your lan?

What happens if you do your rdp from ip instead of name?

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Related Solutions

October 13, 2009 at 19:52:51
i just connected via VPN and then ran RDP from the WinXP computer and it worked, i was able to control the Win2003 server as if i was sitting in front of it. But why was the desktop from the WinXP computer not displaying the same desktop applications that were open on the Win2003 Server?

I thought that what ever was on the Win2003 Server would be the same thing I see from the WinXP computer, so if i had notepad open on the 03 server and the RDP from the WinXP computer that i would then log in and see the same notepad on the desktop?

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October 14, 2009 at 09:26:23
When you logon the server console you have one session. When you logon again via rdp you have another which is why the screens don't match. Don't forget rdp is built on terminal services. Would TS work if everyone got the same screen?

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October 15, 2009 at 13:46:10
the only way RDP is working is if i first connect via VPN, and once that is connected i will run remote desktop connection using the computers name and i am in.

if i do not connect first by VPN and use the ip address (ex: of the routers public address i do not get in!!

The 2003 svr does not have TS as a server role, but RDP works, do i need TS installed? i am only using it from remote administration not for application mode

i have still not tried to VPN from a place other than my LAN, but will soon try.

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October 15, 2009 at 15:56:43
You don't need TS services. I was trying to explain why you don't see the same screen you see when logged on to the console vs rdp.

If you can vpn in the lan I would not expect it to work from a remote location but it will be interesting to see what results you get when you try.

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October 16, 2009 at 10:01:19
I went out with my laptop to find a wireless connection about a few miles away from my house i got one. Once i got connected, i then ran my VPN connection - and got connected to my LAN - and then i proceeded to RDP into the 03 server and it worked!!!!

I got home and messed with a new option because i wanted to see if i could RDP into the server without having to VPN into the LAN first. I went to the RRAS mmc and to the NAT/Basic Firewall options - proceeded to right click the NIC that is connected to the router (public internet), i clicked remote connection in the check box and gave it the ip address that the router assigns this card ( and did an RDP without first VPNing in and it worked!!!! do not have to first VPN then RDP any longer.

when i RDP'd to my 03 Svr, why is my connection listed in the Terminal Services Manager mmc? and not the Remote Desktop mmc?

i am confused with the TS vs RDP, i am not using TS i am always using RDP to connect to the 03 server. I do not have TS as a role on this server.

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October 16, 2009 at 10:24:22
rdp is ts with the limit of two accesses. TS with ts cals allow for more than two accesses [limit is based on cals]

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October 16, 2009 at 14:01:07
is RDP different if i RDP into a winXP computer rather than into an 03 server?

If i leave my Work winXP computer with an application (ex: access database) open can i go home and RDP into my work computer and will the application still be on the desktop for me to work on it?

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October 16, 2009 at 14:19:40
RDP on a server is different from a Desktop computer. Like Wanderer said it setups a Terminal Server for each login (Up to 2) So if you login through your desktop and open a program then login through your laptop you will not see the program because you open a new terminal.

"check box and gave it the ip address that the router assigns this card ( and did an RDP without first VPNing in and it worked!!!! do not have to first VPN then RDP any longer."

That is scary because that is a Private IP and it should not be routable through the Internet. Are you sure you did not have a VPN connection open?

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October 16, 2009 at 14:28:08
no, i had port 3389 forwarded to

if i RDP into a workstation winxp1 to winxp2, will any apps that are running on winxp2 be editable from winxp1?

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October 16, 2009 at 14:51:57
Yes because all you're doing is remote controlling (using their Keyboard and Mouse) their computer and what is installed on your computer is of no consequence.

Maybe I don't understand the question. If you don't like RDP then use VNC...


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