Windows 7 - Onboard Nic Disallows Usb Wifi Adapter To Work Simultaneously?

Mar 28, 2011

I have an HP W7 (Home Premium) PC.

I have a wired connection (on-systemboard network interface) to a Belkin 54g router, but the router is not physically connected to the internet (no ethernet cable out to a cable modem/whatever). The router connects several necessary peripherals - mostly wirelessly to the main PC and another W7 PC.) All this stuff worked prior to a move to a new location.

There is freely accessible Wifi in range (public library - wherein I could concievably carry the whole PC and use their WiFi with their blessing).

I attached a USB Wifi adapter to the PC to avail myself of the free service, but W7 will not allow the Wifi adapter to be seen until I detach the ethernet wire. Then it will allow me to see the available network, and connect.

How does W7 (or the system board) look at network? Are they (onboard NIC and USB) mutually exclusive? Do I need a separate ethernet adapter card or a separate USB adapter card to create a different "channel" that would allow the two networks to coexist?

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