I live in a rural area, on a one acre forested lot. Approx 10 days ago I was watching netflix, it was buffering a lot, there were no other devices on, so I signed into my router, to see what was going on . I use CableOne and the router was a motorola surfboard. There were 4 devices connected to my guest network, all with the same mac # except for the last 2 digits. I pinged them discounted them deleted the guest network, They reappeared as broadband connections. I turned on the flood lights in the yard let the dogs out, there is no living behind me or next to me, the closest house is 2 acres away and they were not home. How far away can someone be to hack your router?