Can't connect using RDP from one spot but can from another

[Guest]

Hi folks,

I've got a strange one that I need some help with:

We have two subnets (more actually but that's beside the point), and I am
having some difficulties using RDP across one of them.

*I can remote to workstations and the server on subnet 2 from subnet 1 by
name and by IP. All of these computers are a member of our W2K3 domain.
*I cannot remote to one workstation on subnet 2 from subnet 1 by name or IP.
This computer is not a member of the domain.
*I can remote to this workstation from the server on subnet 2 by name and by
IP.
*We don't have this problem on other subnets, even with PCs that are not on
the domain.

I know there is something on subnet 1 causing the problem but I have no idea
where to start looking.

All machines are XP with SP2 (server is W2K3 SP1), firewalls off. I've
checked our VPN and hardware firewall settings, I didn't see anything that
would be blocking this (from what I can tell).

We use Sonicwall units for our hardware firewall and VPN tunnel.

Any suggestions at all would be appreciated, it's a pain to have to remote
to the server and then to the remote workstation.

TIA,
Nancy

 

[Robert L [MS-MVP]]

Can you ping the computer by IP? is yes, can you telnet port 3389?

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
Hi folks,

I've got a strange one that I need some help with:

We have two subnets (more actually but that's beside the point), and I am
having some difficulties using RDP across one of them.

*I can remote to workstations and the server on subnet 2 from subnet 1 by
name and by IP. All of these computers are a member of our W2K3 domain.
*I cannot remote to one workstation on subnet 2 from subnet 1 by name or IP.
This computer is not a member of the domain.
*I can remote to this workstation from the server on subnet 2 by name and by
IP.
*We don't have this problem on other subnets, even with PCs that are not on
the domain.

I know there is something on subnet 1 causing the problem but I have no idea
where to start looking.

All machines are XP with SP2 (server is W2K3 SP1), firewalls off. I've
checked our VPN and hardware firewall settings, I didn't see anything that
would be blocking this (from what I can tell).

We use Sonicwall units for our hardware firewall and VPN tunnel.

Any suggestions at all would be appreciated, it's a pain to have to remote
to the server and then to the remote workstation.

TIA,
Nancy

 

[Guest]

I can't ping or telnet from here. I can ping from the subnet it is on but I
can't telnet to port 3389 or 23.

 

[Guest]

Hi folks,

I thought I would check again to see if anyone had any ideas.

I need to get this sorted as we have a desktop support tech who needs to be
able to access this machine but we don't necessarily want them to be able to
logon to the DC on the subnet.

Thanks in advance, I'm not sure how to work through this one so I appreciate
all the help.

Nancy

 

[Sooner Al [MVP]]

Any chance your running a software firewall on that particular PC that is
blocking incoming RDP requests? If its the XP SP2 Windows Firewall its
possible the firewall is configured to only allow access from its subnet
versus from any IP...

http://theillustratednetwork.mvps.o...irewall/FirewallAddressScopeConfiguration.jpg

--

Al 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...

 

[Guest]

Hi Al,

There is no firewall of any kind running on the PC, I have confirmed that
the windows firewall is disabled.

I know that it's not something on our hardware firewall as we can reach
other machines on the subnet.

Arg I'm so frustrated.

Thanks,
Nancy