I have had BT Fibre for about 6 weeks and check my router event log regularly. I have today noticed that 4 or 5 different devices are regularly attempting to connect to my router. The log shows - Wl1 A Device (then the mac address) failed to connect to SSID because it provided incorrect log in information. It is not happening all the time but with 10-15 minute breaks before another 10-15 mins of continuous attempted log ins ( but this can vary). These mac addresses do not relate to any of my wireless devices .
I am somewhat concerned at this activity. Can anyone tell me what this might be and how to stop it. I have made no changes to the router configuration. Any help would be gratefully appreciated.