In the past, icamsource.exe has crashed on me when I did not have port forwarding configured correctly. After I fixed the port forwarding, icamsource.exe has been rock-solid. Since you're in a hotel, it is unlikely that they have uPNP enabled on their network...meaning that icamsource.exe probably can't automatically set up the port forwarding. In icamsource.exe, you have "router auto-config" checked or unchecked? If checked, try unchecking it and restarting icamsource. Also, if it is a port forwarding issue, I've had luck in the past getting one camera to work...it's when multiple cameras are used that things start going back. So try using only one camera and restart icamsource.