If I was a bank, I would be worried about this. If I was a home or small office user without top security type issues, it would be very remote that this would happen to you. It appears they would be...

My C8 has guest controls that allow me to control WIFI times. Yours may have it also. Set up a Guest network for those devices you want to control. Be sure to turn off WPS and not use the default...

Sign on to the router and click on the wireless clients, Also you can try the app tether. There are other apps that show the clients. I do not know any that have an export feature.

I also have had many computers and routers up for many months without issues. Both window and Apple machines. My work computer was never down as I needed access to it 24/7 either in the office or...

Do you get the error when connected via cable? If so, it is your device.

Check you "guest" settings as you may be able to do it there.