Unknown device seen by HH4 and allocated static IP...

I'm setting up a new HH4.
In the list of home network devices it shows an 'unknown' device.  It seems it's a wireless device (connected through an access point; the AP tells me it's connected there).  I have no idea of what the device is.  On looking at its properties on the HH manager, it seems it's been allocated a 'static' IP address, within the normal DHCP range.  All my other devices show 'IP address assignment: DHCP' where this one shows 'Static'.
Any idea why this device would have been allocated a static address?  As far as I know, this is something I could configure the HH's DHCP server to do (but I haven't); I don't think it's something that the device itself can request.  So how does this come about?  I'm hoping this information will help me figure out what this device is.
Phil
Solved!
Go to Solution.

Lots of my devices have registered as 'unknown' initially, then I've been able to identify them (using the MAC address, for example) and change the name.  But all these have been allocated addresses using DCHP (as I would expect).  What's odd about this is that (a) I still can't identify it and (b) it's been allocated a static address.  If I understood the reason for (b) I might be able to solve (a).

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