How do I get rid of "No Internet" pop-up?

[CityChickens]

I have an iPhone 4S. All day today I can't get anything on the Internet. It keeps saying no internet. I can see I have wifi connection. It doesn't even work when I leave home. Phone calls working fine.

[Weth · Accepted solution]

Try rebooting phone.  Hold down the home button and sleep wake button for 10 seconds.  If that doesn't work, let us know

[CityChickens]

That worked!!!! Thanks