I have a Super Hub 2ac which i simply forgot to change the default passwords for the router and the wireless network when i upgraded from the previous Super Hub.
After experiencing sluggish performance and reduced download speed for a period of time i logged into the router and observed the "device connection status".
After learning a little more about MAC addresses i noticed i had one more MAC address connected to "wireless devices". I observed this on a few occasions until i finally changed all passwords. Since i did this i have not had any problems or noticed any additional MAC addresses.
It was definitely a hacking of the router as i know how many devices are connected to my wireless network and i double checked the MAC addresses of these devices with what were showing up in the router. I was also getting unusually low download speeds on my 100 Mb line for a period of a few weeks,
I am guessing the culprip was downloading a lot of data
So, i am looking for advice on any settings i need to change within the router or any advice in general.