This is more a curiosity than a concern.
I have a Firewalla gold setup in Simple monitoring mode. On my lan, I have a device, Plugable Technologies (), that shows a MAC address, but no IP. It shows as offline, The strange part is that Firewalla reports it going offline ONLY about every hour, although not always exactly 1 hour.
I checked and Plugable Tech make USB hubs, cables. AFAIK, I don't have any of these.
Has anyone seen this before?
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