I seem to get a drop in my wireless connection occasionally - 2 or 3 X daily. I noticed that each time this happens, a network (picture attached) is always listed - but the problem is, the network, circled in red, belongs to a cafe where I used their internet connection months ago, and it's located at least 10 miles from my home.....should I be nervous? I've tried deleting it, but it keeps coming back...is someone there connected to my computer? How do I get rid of it permanently?