Hub2 Log filling up.

[#1]

@Anonymous  It’s possible the unknown device gave up when the router was re-booted, It’s even possible the unknown device has now connected to the correct router which may have had a weaker signal…

[#2]

Who was visiting at the time?

Could the device be a i-something with a MAC which you don't recognise? I've seen similar when one of my offspring has visited and they've configured their i-thing to use a MAC which is something not recognised outside of their own local network. They've had the wireless key to here so they can still access the wireless network when they've visited (for their own convenience). And the hub2 doesn't have any MAC filtering. Such entries disappeared when the visitor left the ranges of wireless network. Sometimes the device would generate multiple entries as it fell in and out of the ranges of the two wifi networks (as they wandered around the house and garden).

[#3]

The Hub Two will rotate its logs at a sensible interval anyway I imagine, so even when 'full', it's unlikely to have any impact on your Internet connection. 

Reassuring that the errant entries have gone away though I guess.

[#4]

@greygit1 

Such entries disappeared when the visitor left the ranges of wireless network. Sometimes the device would generate multiple entries as it fell in and out of the ranges of the two wifi networks (as they wandered around the house and garden).

I do not recognise this behaviour with the Hub Two I've used.

A MAC address can only be listed once, it will show up as connected to either 2.4 or 5GHz (or LAN port), when not connected it will detail which frequency it was last connected to.

The only condition when a device name (hostname) can be listed more than once is when the device has used two different MAC addresses, this being either a LAN or multiple wireless MAC addresses due to a device using randomised MAC address for privacy reasons. New wireless devices use randomised MAC address is the default setting.

The Hub also displays devices that have previously connected from months ago, in a disconnected state

[#5]

"The Hub also displays devices that have previously connected from months ago, in a disconnected state"

That'd be in the "devices" section, and not in the log?

Perhaps I should have been clearer - in the case I was remembering it was entries in the log, and the entries in the log ceased to re-appear. I also remember log entries which mentioned "self-roaming" for the device.