The computer does not have Network Magic installed.

For more information, see Install Network Magic on each computer.

This is normal. You can include in your network computers that use operating systems other than Microsoft Windows (for example, an Apple Macintosh).

However, while you can include such computers, keep in mind that Network Magic provides a limited amount of information about them. For more information, see About non-Windows computers.

Network Magic might not run properly if you have installed a software firewall on the computer or you have changed which ports are open in the firewall settings.

If either of these applies in your situation, configure your firewall to open the correct Network Magic ports. For information about the ports that Network Magic uses, see Network Magic ports.

Protects a computer or network from unauthorized access.

A channel for network communications, including the ports found in a computer, router, or firewall. Different types of data transmit through different ports.

For example, if you have installed a beta (pre-release) Network Magic version on one computer and a regular release Network Magic version on another computer, the network map might not show that Network Magic is installed on a computer. To determine whether this is your problem, go to each computer that has Network Magic installed and check the Network Magic version number. For steps, see Get information about your program.

If you find that you are using different versions, make sure you use the same Network Magic version on the computers in your network. Uninstall the early Network Magic version and install the latest Network Magic version. In addition, if you want to make sure that you have the latest Network Magic version, see Check for updates.

The Network Magic feature you use to help manage your network.