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Windows Forum / Windows XP / Remote Desktop / June 2007Your Remote Desktop Session has ended
I have 2 PCs at home that I make remote desktop connections to from work. Both are XP SP2. I forward port 3389 to PC1 and port 3391 to PC2 on my router. I changed the listening port for Remote Desktop to 3391 on PC2. RDP connections to PC1 work w/o any problems. From within my local network, I can connect to PC2 (xxxxx.no-ip.com:3391) with no problems. However, from work it starts to connect (it has PC2- xxxxx.no-ip.com:3391 Remote Desktop on the menu bar) and then after 10-15 seconds I get the following error: Your Remote Desktop session has ended. The connection to the remote computer was lost, possibly due to network connectivity problems. Try connecting to the remote computer again. If the problem continues, contact your network administrator or technical support. I have the same problem with Zone Alarm turned off. so I don't think it's a firewall issue, and there is nothing to speak of in the Event Logs. Any ideas? Thanks, Nelson >I have 2 PCs at home that I make remote desktop connections to from work. > Both are XP SP2. I forward port 3389 to PC1 and port 3391 to PC2 on my [quoted text clipped - 22 lines] > > Nelson Any chance the folks at work are blocking TCP Port 3391 outbound? You can check with the work network admins about that. Can you connect to PC2 from another location like a friends house or the library or your favorite bar/restaurant? Have you tried to simply reset the router?  SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 I tried reseting the router w/o success. I have not tried from a location other than work, but I have been assured by the network-gods here at work that 3391 is not blocked. I'm fairly certain I'm getting past the router. The remote desktop window appears and the name of the PC is being resolved and is visible in the menu bar - PC2- xxxxx.no-ip.com:3391 before the error pops up. > >I have 2 PCs at home that I make remote desktop connections to from work. > > Both are XP SP2. I forward port 3389 to PC1 and port 3391 to PC2 on my [quoted text clipped - 29 lines] > > Have you tried to simply reset the router? >I tried reseting the router w/o success. I have not tried from a location > other than work, but I have been assured by the network-gods here at work [quoted text clipped - 3 lines] > error > pops up. I would still try from another location than work as a test... You also might try a different high number port for PC2, ie. 45678 for example.. What router are you using? I presume you have the latest firmware installed? SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 Sorry for the delay in getting back to you. My router is a Netgear WGT624 with the latest firmware (V4.2.4_1.0.1). I tried on another port with the same results. Here is what may be a big clue. I tried connecting from several PCs at work. Desktops could not connect, while laptops could?!?! How's that for a noggin scratcher? > >I tried reseting the router w/o success. I have not tried from a location > > other than work, but I have been assured by the network-gods here at work [quoted text clipped - 10 lines] > > What router are you using? I presume you have the latest firmware installed? > Sorry for the delay in getting back to you. My router is a Netgear WGT624 > with the latest firmware (V4.2.4_1.0.1). I tried on another port with the > same results. Here is what may be a big clue. I tried connecting from > several PCs at work. Desktops could not connect, while laptops could?!?! > How's that for a noggin scratcher? Did you ever try from a location other than work? Any chance the laptops are running some sort of firewall or VPN or some type of security software that may block this? I have seen reports of a Cisco VPN client blocking RDP requests. Can the laptops connect to PC1 on TCP Port 3389? SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 >> Sorry for the delay in getting back to you. My router is a Netgear >> WGT624 [quoted text clipped - 11 lines] > > Can the laptops connect to PC1 on TCP Port 3389? Well, I got desktops and laptops mixed up as you can tell. So just substitute and let us know... SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 - My boss connected to PC2 from his home PC with no problems. - The laptops can connect to PC1 on TCP Port 3389 with no problems. - I made sure Windows firewall was turned off on the desktop and the problem is still there. There is no VPN software on the desktop(s) ** I also created a fresh install of XP on a virtual machine and did not join it to the domain to eliminate any possibility that there was a policy in effect that might cause the problem. Connecting to PC1 on 3389 from the virtual machine worked on my desktop and on a laptop. Connecting to PC2 on 3391 from the virtual machine failed on my desktop and failed on the laptop. ** Thanks for continuing to help on this Al. > >> Sorry for the delay in getting back to you. My router is a Netgear > >> WGT624 [quoted text clipped - 14 lines] > Well, I got desktops and laptops mixed up as you can tell. So just > substitute and let us know... >- My boss connected to PC2 from his home PC with no problems. > - The laptops can connect to PC1 on TCP Port 3389 with no problems. [quoted text clipped - 13 lines] > > Thanks for continuing to help on this Al. Well, if you or someone can connect to your home PC1 (TCP Port 3389) and PC2 (TCP Port 3391) from a site other than the work LAN then it comes down to something on the desktop PCs at work blocking the connection to PC2. Obviously the laptops are configured different than the desktops. Have you looked at the event logs on the work desktop clients to see if you can find any clues? What OS is running on the work desktops? What version of the Remote Desktop client are you running on the laptops and the desktops at work? SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 I checked the event logs on all the desktops that failed to connect and found nothing of interest. All desktops and laptops run XP SP2. The Remote Desktop clients on the laptops and desktops are Shell version 6.0 (Build number 6000). I find it interesting... strange... spooky... that on a laptop that has no problem conecting to PC2 on 3391 can connect to PC1 on 3389 on a virtual machine running on the laptop but cannot connect to PC2 on 3391 through the virtual machine. > >- My boss connected to PC2 from his home PC with no problems. > > - The laptops can connect to PC1 on TCP Port 3389 with no problems. [quoted text clipped - 26 lines] > What version of the Remote Desktop client are you running on the laptops and > the desktops at work? I found the problem. It turns out the MTU on my router was set to 1400. I changed this to 1500 and could connect to PC2. > I checked the event logs on all the desktops that failed to connect and found > nothing of interest. All desktops and laptops run XP SP2. The Remote [quoted text clipped - 36 lines] > > What version of the Remote Desktop client are you running on the laptops and > > the desktops at work? >I found the problem. It turns out the MTU on my router was set to 1400. I > changed this to 1500 and could connect to PC2. Strange indeed... Thanks for the feedback. Glad to hear you have it fixed... SignatureAl Jarvi (MS-MVP Windows Networking) Please post *ALL* questions and replies to the news group for the mutual benefit of all of us... The MS-MVP Program - http://mvp.support.microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights... How to ask a question http://support.microsoft.com/KB/555375 |
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