Our company is on a 10.x.x.x network.

A user brings her laptop to the office. Connects and pulls the 10.x.x.x network. Unplugs her laptop and goes to another location. Then she pulls home network of 192.168.0.x and its from a Netgear (DNS Suffix). I checked the port and it is connected to our network in the network room to our cisco switches. I released and renewed and it picked up the 10.x.x.x network again. I can’t figure out why it did that. She does not have internet at home. She does have an Air card. Could that have put the info in? But why netgrear DNS Siffix?