Ubuntu automatically connects to a wireless network when its already connected by eth0 to the same network

Question

I use Ubuntu 11.04, and I work at an institution which has wired and wireless connectivity. My computer is set to automatically connect to the wireless network if it is available.

When I am plugged into the wired network, Ubuntu still tries to automatically connect to the wireless network, even though it's the same network.

In Windows, if I am plugged into the wired network, my computer does not attempt to connect to the wireless network. This is the functionality I would like.

Is this possible to achieve under Ubuntu?

Answer 1

As buddies said the simplest way is to power off wireless adapter using its hardware switch.

But if your computer hasn't such a switch, go to system>preference>network connections; now go to the wireless section (second tab), select the wireless adapter that automatically connects to access point from list, click edit button,in this window, uncheck "Connect Automatically" and click apply. it seems that the problem will not arise again.