So, am I reading things right - there is no way to use this box with a Mac on your local LAN without internet access? The Mac desktop doesn't support it, so that is a no-go, and the web plugin has no provision to connect to your slingbox without the help of the internet?
What a pathetic state of affairs if true....
We recommend you to check the following link in order to verify if your computer meets the technical specifications.
If it does not, make sure to upgrade the required components.