Airport connected, but no internet access.

[HarryPot]

I'm having problems with my connection to the internet. Either in Snow Leopard or in Windows (Bootcamp), sometimes it says that I'm connected, but I have no internet access.

Most of the time everything works as normal, but at least 4-5 times a day the problem presents and I can't access any webpage, tho it do says I'm connected to my Airport Extreme.

Same thing happens with my iPod, at the same moment. So it must be something with the AE, but I'm completely lost as to what it is.

Anyone?

 

[-aggie-]

Turn off the AE and then turn it on after 30 seconds?

 

[geofuzz]

AE strategy..did it work?

I am having similar problem. Macbook pro 10.5.6 works flawlessly connected to wirelessly to linksys router connected to cable modem at home but at university connects to wifi but has NO internet connection.
interested to know if your turning AE off/on worked. Also, I have seen that adding a Location might also help solve the problem. Does anybody know if that works as well?