Cannot update my iPod & iPad since I downloaded the latest update to iTunes

I agreed to download the latest version of iTunes and now my two devices cannot connect to the individual software servers and download the newest versions for iPod and iPad. I have followed all the recommended actions from updating HP, Wimdows, and the security program. I have restarted the computer many times too. Whatever answer you could give would be awesome since I am technilogically aggravated...:0)