Remote Web Desktop Connection failure yet VPN and RDP works

I've got SBS 2003.

I can create a VPN to our network and RDP onto our servers.
I can use the https://ourserver.remote, login, and connect to the remote web workplace.  From here I can access the Outlook web access and view the emails fine.  If I click on connect to server desktops, I can see a list of the servers.  When I connect to a listed server I get a do you trust the computer you're connecting to dialog.  I say yes then after a while I get the infamous "cannot connect to remote desktop" message.
When I'm in the office and open IE and type servername/remote, and go through the above it does connect to a server using RDP.
I have customers who have their own web desktop connection configured who I can also access the RDP through the web no problem.  

It doesn't appear to be a client related issue so must be our SBS configuration but I have no idea what the problem could be.
Can anyone help?
LVL 1
redoxsoftAsked:
Who is Participating?
 
Dave_ANDConnect With a Mentor Commented:
make sure you have 4125 forwarded to the SBS box. SBS uses that to do the remote RDPs.
0
 
redoxsoftAuthor Commented:
That appears to have done the trick.  Many thanks.
0
All Courses

From novice to tech pro — start learning today.