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Remote Desktop - Unable to connect to host

I have a new laptop that I am trying to use to connect to my work computer via remote desk top.  My work has a Citrix setup and one of the applications available is connecting to my computer is SCCM Remote control.

I am able to connect to my host (work) computer when I am at work connected to their public WiFi.  However, when I'm actually remote at home, I am not able to connect to the host computer using my home network.  I receive the error message "Unable to contact host".

I know that I am connected to the work network because I am able to use other functions that are available to me on my Citrix menu such as Outlook, and My Computer.

Any ideas why I might be able to remote in from one location and not another?
1 Solution
Two things can be stopping you.

1. The public network is really just a AP on your actual network, so when you are looking for your desk they are actually on the same network and using the same internal DNS server.  Check out your ip on your desk and your laptop.  If they are in the same network, then you are never actually leaving.

2. The public IP name will need to be somewhere so when you "look" for your desktop it should return a result.  And your home router or whatever is serving DNS, has no idea where to find you.  This combined with the network admin not forwarding the port to your desktop will also prevent you from doing this form outside.
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