There isn't a direct way to manually add a known device that isn't currently on the network. However, you can work around this by using the XML import feature:
- Simply create an XML file in any text editor, copy the text from below, and edit it by replacing the sample MAC address and comment with your device details. Alternatively you can download, unpack and edit this XML file.
- Once done, go to All Devices - Import in WiFi Guard and select your XML file.
<?xml version="1.0" encoding="UTF-8"?>
<CONFIG>
<Cache Count="1">
<Item0 Known="True" HWAddr="AABBCCDDEEFF" Comment="My device" FirstSeen="2020-01-01T00:00:00.000Z" LastSeen="2020-01-01T00:00:00.000Z"/>
</Cache>
</CONFIG>