Remote Desktop over dial-up

[Guest]

I have some Windows XP Pro machines at remote locations that I dial into and
then open a Remote Desktop Connection to it. On 10 out of 11 this works fine.
But one the last one I can dial into the remote Windows XP Pro machine but
when I try to open the remote desktop connection it cannot find the computer.
I have verified that it is set up identically to the other 10 systems. Same
computer name, same "accept incoming connections" settings, same users and
rights. I ruled out the dial up connection on my local machine by copying a
connections that works and changing the phone number. Any other ideas? The
only thing I can think of is that the modem line on the remote machine is
going through a PBX. But that seems unlikely to cause a problem like this.

 

[Sooner Al]

I have some Windows XP Pro machines at remote locations that I dial into and then open
a Remote Desktop Connection to it. On 10 out of 11 this works fine. But one the last
one I can dial into the remote Windows XP Pro machine but when I try to open the remote
desktop connection it cannot find the computer. I have verified that it is set up
identically to the other 10 systems. Same computer name, same "accept incoming
connections" settings, same users and rights. I ruled out the dial up connection on my
local machine by copying a connections that works and changing the phone number. Any
other ideas? The only thing I can think of is that the modem line on the remote machine
is going through a PBX. But that seems unlikely to cause a problem like this.

I guess you could test by bypassing the PBX and connecting the problematic PC modem
directly to a telephone line...

 

[Guest]

Can you not connect via IP Address, or FQDN?

Can you ping or tracert the remote machine?

Perhaps the remote computer has a software firewall blocking your RDP
Requests.

Can you open a remote desktop session to the computer from that computer,
i.e. while sitting at the console of this remote machine, can the end user
get to the Remote Desktop Logon when entering the loopback IP Address
(127.0.0.1), NetBIOS or FQDN?

Patrick Rouse
Microsoft MVP - Terminal Server
http://www.workthin.com