WLAN access rejected: incorrect security

[BSilverthorn]

Can anyone shed any light on what this might actually be? This MAC is not anything on our network internally, or statically on the cable modem:

 

[WLAN access rejected: incorrect security] from MAC address dc:4f:22:5c:9a:18, Wednesday, April 29, 2020 22:29:02 [WLAN access rejected: incorrect security] from MAC address 4c:11:ae:0f:e6:c6, Wednesday, April 29, 2020 22:29:01

[9:51 PM]

[WLAN access rejected: incorrect security] from MAC address 4c:11:ae:0f:e6:c6, Thursday, April 30, 2020 20:42:39 [DumaOS] config write 'com.netdumasoftware.devicemanager.database', Thursday, April 30, 2020 20:42:38

[BSilverthorn]

Appears I have some iot device trying to join relentlessness with bad credentials. 

[Netduma Fraser]

It does appear to be an i/o device not located near you, sometimes these things happen in that people will try to access systems but the fact that it is blocked is a good sign and shouldn't be any cause for concern as your network is secure.