Cant connect devices to internet

[Howeswar]

My exbox, PS3 and psp work through my wireles router perfectly but cant get my htc, iphone or ipad to work.
it picks up the wirless signal and says its connected but cant connect to the internet.

Any possitive input would be appreciated.

 

[RealBeast]

Did you enter the wireless security passphrase into the devices that won't connect?

Does your wireless modem DHCP server have enough addresses allotted, and is MAC addressing enabled on the router (if so you may need to disable it)?

A little more detail of your equipment (esp wireless router model) would help, also what steps you have tried.