Hello all,
i boot up, surf the internet using my eth0 cable modem, all is good.
Then i connect to a wireless network with my wireless card ath0, all is good.

When i disconnect from the wireless network, i can no longer surf the net with my cable modem

I must be missing something, i have googled this but my search phrase is a bit to exact or somethin. Can someone plz tell me what i am not doing and why my firefox cant connect after using wireless. How do i switch back to my eth0?