fedora internet problem

[Kumudbandhu Dey]

Wired internet works on Windows but doesn't work on Fedora 17. I set it 
up manually I am sure I made everything correctly. It even says 
Connection established but Internet doesn't work in any program.

I installed it on my PC. I didn't delete Windows yet.

My settings:

IPv4

IP: 172.18.13.23
Netmask: 255.255.255.0

Gateway: 192.168.105.1
DNS servers: 4.2.2.2
plzzz help me.....i love Fedora.........