To set up a home network, you must first trust the network. All of the PCs and devices you use can be added to the network, and viewed from the network map. When you make changes to your network, the network map recognizes those changes and shows them automatically.
You can manage protection for each McAfee protected PC or device on your network, and fix any reported security vulnerabilities. If you installed Total Protection, McAfee also monitors your network for intruders (unrecognized or untrusted PCs or devices) that try to connect to it.