Question

Locked

Remote Desktop puzzle that is beyond me...

By grindy ·
Hi,

I have 2 computers that both run Vista and I have used the laptop in the past to access the desktop via RDC. This past weekend, from one outside location, I tried to connect as in the past but couldn't. The message from Vista said it couldn't connect. I checked all my firewall settings (including turning off the firewall within Trend Micro, and using Windows Firewall that is set to allow RDC).

Here's the wierd part. I can connect sucessfully from one wireless network (not mine, a neighbors) every time, but when I try to connect from another wireless network (a different neighbor) I cannot connect. I can repeat this every time.

Nothing has changed on my laptop or my desktop. I connect sucessfully from one external wireless but not from the other. How can this be?

Please tell me what I'm missing...

Thanks for any input,
bob

This conversation is currently closed to new comments.

8 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Answers

Collapse -

Windows firewall can do strange things....

by robo_dev In reply to Remote Desktop puzzle tha ...

if the neighbor's WLAN uses the same IP address range, then the firewall assumes it's the same network. But if the IP address is new, then it may think it's an untrusted zone, and lock things down.

For security sake, use a hardware firewall of some sort.

Try, as a test, turning off Vista firewall altogether.

http://www.brighthub.com/internet/security-privacy/articles/836.aspx

Collapse -

Firewall settings

by grindy In reply to Windows firewall can do s ...

Vista's firewall (on the system to be accessed of course) has port 3395 open for RDC. And like I said, I can access it via RDC from my laptop from one remote site, but not from another remote site.
Correct me if I'm wrong, but I believe that the firewall settings ONLY need to be set for the system BEING ACCESSED. Correct?

Collapse -

humm one neighbors network doesn't have much

by CG IT In reply to Firewall settings

security and another one does?

as your original posts says to quote "Here's the wierd part. I can connect sucessfully from one wireless network (not mine, a neighbors) every time, but when I try to connect from another wireless network (a different neighbor) I cannot connect. I can repeat this every time."

Collapse -

Perhaps the port is blocked? <NT>

by Kenone In reply to Remote Desktop puzzle tha ...
Collapse -

Port settings again...

by grindy In reply to Perhaps the port is block ...

Thx Kenone, but - and please correct me if I'm wrong - the firewall settings only affect the HOST system, the one BEING ACCESSED remotely, correct?

Collapse -

Firewall can affect both ends....

by robo_dev In reply to Port settings again...

for example, the host may try to ping the client to see if he is there, but the firewall would block the ping request.

Similarly, the firewall would block DHCP response, limiting the ability to get an IP address.

Collapse -

Nmap: it's not just for hackers

by robo_dev In reply to Perhaps the port is block ...

whenever I have a weird issue like this, just install and run nmap.

Do a quick port scan of your host and see what listening ports nmap can see.

If you don't see the port(s) needed for your application, they are either not listening (e.g. the service is stopped), or they are being blocked by your firewall/router/misconfigured LAN, etc.

Back to Windows Forum
8 total posts (Page 1 of 1)  

Related Discussions

Related Forums