Internet is connected, yet doesn't work?!

[iamjustkirby]

I am using an iBook G4. It has been updated to version 10.5.8 and it has a 1.42 GHz processor.

The internet connection was working perfectly fine up until a few days ago when it stopped for roughly 24 hours. It began working again and then stopped for a second time.
It is nothing to do with the internet itself as there are three other computer connected to it that are working as normal. However, the iBook does claim that the wireless and Ethernet are in fact connected as normal and so I assumed should work? Yet Safari tells me that I am not connected to the internet.

[DeltaMac]

Go to your System Preferences, then to Network pane
Click on the Assist Me... button, then click on Diagnostics.
You'll see a vertical column of lites (Network Status). Are they all green?
If not, follow through with the Diagnostics (click Continue), and respond when asked.
Does that fix your connection?

[rachitihm]

check in the options whethere there is any proxy or not..if yes then remove it.

[MisterMe]

check in the options whethere there is any proxy or not..if yes then remove it.

You do understand that the OP was posted three weeks ago?