Why i cannot connect to the internet?
Some more information will help....
Some more information will help.
1) What operating system are you running (I assume it's Linux since you are asking here, but just to make sure), and if it's Linux, what distribution (Ubuntu, Linux Mint, Debian, Fedora, etc).
2) How are you trying to connect--wireless or wired?
3) What happens when you try to connect? Is there an error message of any kind?