Connected to the router but not Internet

Sorry, i'm a newbie to raspberry pi and xbmc.

I used to connect using a home plug which was working fine but i wanted to connect using a wireless dongle.

I purchased the Edimax dongle and plugged it in, downloaded network manager and got it connected to my router.

I then went into command line to configure it.:


Exit XBMC. (bottom button)
Log into the terminal by typing your username and password for the media center user.
Type sudo apt-get update
Type sudo apt-get install wicd-curses

Type sudo reboot
After reboot exit XBMC again.
Log into the terminal by typing your username and password for the media center user.
Type sudo wicd-curses

I got an error so did the below:

sudo /etc/init.d/networking stop
sudo service wicd start
Then, sudo /etc/init.d/wicd restart

i then typed in sudo wicd-curses again which anabled me to connect to my router. I chose my router and it connected to it.

After rebooting ... I can see its connected to the router but not the internet.

Sometimes it says "busy", a few seconds later it may say "connected" or "not connected. Check network settings"

I'm confused ... Help please

What am i doing wrong?