The built in NIC takes priority.
I have a DSL 6MB ethernet connection that I use for my "home" connection on my laptop. I have a USB wireless internet device from Alltel that I use on my laptop at "work". What I was wondering, can these two connections be used at the same time. for example the DSL connection runs bit-torrent stuff, and use the USB device for web-surfing (either firefox or IE). When I connect the USB device, it connects for about 5 - 10 seconds and then automatically disconnects with no reason in the log file, even if I start with the USB device, and then plug in the ethernet, the USB device will automatically disconnect. any ideas or is it just not possible to run 2 different internet connections at the same time .. using Windows XP as my OS.