Why do some devices not display in the Device Discovery? - Metasys - LIT-12013035 - Software Application - SCT Pro - 15.0

SCT Pro Help

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User Guide
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SCT Pro discovers devices on the same subnet as the computer that you installed SCT Pro on, and does not discover devices on other subnets. Other tools, such as the NAE Information and Configuration Tool and the NAE/NIE Update Tool, perform in the same way. Install SCT and SCT Pro on a computer that shares the subnet of the devices with which you want to interact.
Note: While the NAE/NIE Update Tool performs in the same way, please use SCT Pro in lieu of NAE/NIE Update Tool.