cant find internet connection

Hi, Im trying to update weather via my gprs connection. I see it establish the gprs but then it gives the error Cannot find internet connection. How do I fix this?

I don’t know anything about GPRS connections. How does it work?

Whats the difference between WAP and GPRS? I set both up on my phone for when I don’t have a wireless network. What are the differences (obviously they both connect to the web) but is one of them faster etc?