My laptop can use Wi-Fi but nothing else will?

My ipad, iphone, and 3DS can't connect to the Wi-Fi and they could just a few days ago but my laptop still can. When I try to connect to the Wi-Fi on my ipad a login page comes up that says either "itools.info" "captive.apple.com" "ibook.info" or something else at the top. If I press cancel it says I can "Use Without Internet" and if I then try to open a page on Safari it goes to Actiontec.

Maybe your laptop Is picking up Wi-Fi from a different service provider or router.

Check your modem Wi-Fi settings and reset it.