OK... you have really got to be more specific. What software are you using to remote? Are you trying to remote into your work or into the computer you are moving from network to network? If the second is the case I would say that the other networks do not have the ports open necessary for you to remote in.
wow i was vauge now that i re read that sorry. im using the built in remote desktop in Xp pro.. on both the host and the lap im running. awhile back i set up my desktop to use it and it only seems to work on comps on my own network... why would it work on this lap when its on my own network but not when its on a dif wirless conection? I know im still being vauge but im not infront of my desktop..
So basically what you're saying is - if the desktop and laptop are both on your network, RDC works fine, but if your laptop is on a different wireless network and tries to connect to the desktop, RDC fails?
If that's the case, it's because port forwarding isn't necessary unless you're connecting from outside the internal network. That's why the laptop is able to connect to the desktop when they're on the same internal network. What you need to do is setup port forwarding in your router configuration - forward TCP port 3389 to the IP address associated with the desktop. Then try connecting to it from a different network.
i might ust recore my comp this weekend.. i may have changed something a few months ago fiddling with it.. time to do it anyways.. on a side noet my VB class just got canceld because the TA coudnt open a door so... i get to go home.
hmm.. maybe i didnt forward the UDP prot with the 3389 tcp.. man this is driving me nutts and im never around my comp long enough to mess with it.. and even then i cant check it actively.. hehe will ghet back to you when i have more.. and your diagram looked about right.