Ok, so I just got home, and I turn Wi-Fi on on my iPhone, and in addition to my home network, I see "Iphone 4" (spelled like that). It's an Ad-Hoc network and it has various DNS servers, including Google's 220.127.116.11. It surprised me because I live in a neighborhood where the houses are fairly spaced out and we can't usually get each other's networks. It had good signal strength so it must be near by. I walked around and found where the signal was strongest, the bathroom where our contractor is painting. When he left for a smoke break, I went in and saw an iPhone 3G plugged it. I knew that must be the source. I turned it on and saw it had MyWi on the phone but it was turned off. His phone was also connected to "Iphone 4". Even stranger, his phone had no service, the SIM wasn't activated. I checked the ISP of the network and it was an AT&T cell phone. Any ideas where this network could be coming from? Thanks.
asked Mar 15 '11 at 17:36
The contractor's iPhone could be setup for tethering, and forgot to turn it off.
answered Mar 15 '11 at 17:41