I am no programmer, but as I understand it Miniports are basically driver created subfunctions that a device in Windows has. WAN Miniports usually show up on a network interface for each of the base driver’s supported additional connection techniques over a WAN (PPoE, L2TP, PPTP, Etc.). Since they are not “real” it seems that Windows Server 2008 and beyond assigns each of the subfunctions a new unique ID on each Windows reboot. This causes SolarWinds to detect them as a “new” interface during discovery that follows a reboot.
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