cannot open netflix on ipad after downloading ios7

THANK YOU! It worked for me, as well! After fruitless calls to both Netflix AND Apple, your suggestion worked. Now if only it would work with "Specific Websites Only" selected. Argh...

I followed all the steps and it turned out it was an updating issue. I went to appleId and logged out, logged back in and it worked. Hope this is helpful to someone.

I'M late to the game here's but thank you EKObie. For those concerned about website access, once you have signed in to Netflix you can go back and reset the restrictions to specific websites.

I recently changed safari from blocked to allowed on my daughters iPad. When I did so I locked it down to a limited set of websites.

Turns out I had to add netflix.com to the list of allowed websites.

This worked for me and I thank you.