Help: No internet connection

[Simon Schneebeli]

Hello all,

After having used Ubuntu since almost more than three years, I decided 
to give Fedora a try. The installation went perfectly fine. Everything 
was perfectly recognised. Now I face one big problem: I can't manage to 
connect to the internet.

Through the network connection, I manage to establish a connection with 
my wireless ADSL model. It also works through a wired connection. Ping 
works. But neither Firefox nor any other programme manage to establish a 
connection.

Any idea what the problem may be? I guess you need additional 
information. Which one exactly?

To be more precise: It is a completly fresh install of Fedora 12 on a 
Thinkpad T61. I didn't change anything in the network configuration 
except that I put the password for my wireless connection.

Simon
(currently using Windows as backup...)