Random Mac addresses on wifi, am I being hacked?

[PM3]

Hi, I've been looking at my event log and have found random MAC addresses on there.  It was saying 2.4g MAC address deauthentications reasons disassociated due to inactivity. It was about 6 of them with different MAC address and none of them mine. Well I have never seen them before. There is nowhere saying that they connected it only comes up with dissociation. Does the 2.4g MAC address deauthentications mean that a device has been disconnected from the wifi?

I did a factory reset on Friday and changed my password and then in the early hours on the event log there was another 2.4g MAC address deauthentication reasons disaccociated due to inactivity on there. Even after resetting and none of my devices being connected

I went today on my event log to copy and paste into this forum to show you guys and I can't find any of this on there anymore.  

[stevebrass]

Do you have any Apple devices?

[Les-Gibson]

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@stevebrasswrote:

Do you have any Apple devices?

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In particular, those running iOS14.

see https://support.apple.com/en-gb/guide/security/secb9cb3140c/web 

and https://community.bt.com/t5/BT-Devices/Private-Address-MAC-Randomisation-iOS14-Apple-devices/m-p/211...

[PM3]

Hi guys,

I do have apple devices. 

[Les-Gibson]

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@PM3wrote:

Hi guys,

I do have apple devices. 

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One of them will most likely be responsible

[PM3]

What does this mean?

WHW INFO A station (SmartHub2)IF[5G](E4:75:DC:83:AD:39):STA(5C:BA:EF:96:3C:21)(Legacy Device) join WHW infrastructure

I looked up the mac address and it arcaydian corporation. 

[Les-Gibson]

Do you have an LG TV?

https://www.reddit.com/r/eero/comments/jj1xng/arcadyanon_my_network/

[PM3]

Hi,

No Hitachi and its not connected to the internet. I haven't connected since doing a factory reset. 

The only things I have had connected are 2 laptops and an Ipad.

Thanks guys for helping. I've been so worried that someone has been trying to hack into my wifi.

[TimCurtis · Accepted solution]

@PM3 

With iOS 14 Apple introduced Private Addresses meaning that whenever your device connects to wifi it generates a random MAC address. This function was set as ON by default (wrong) and for wifis that you connect to regularly like home or parents etc you should switch off this function. Go into settings & Wifi and tap the "i" icon to the right of the Wifi name & then turn off private addresses. It's switchable by individual SSIDs.

[PM3]

Thanks, I am going to turn it off and see what happens. I will monitor it over the week. I want to keep this discussion open and then get back to you about what happens. Thanks guys