Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Which iPad model? Try turning off Wifi and Bluetooth; then set the date manually 1 year into the future; shut the iPad down (really off); wait 3 Mississippis; restart; wait 5 minutes; set the date to automatic and turn on BT and Wifi; Restart.
There will be some indexing, which might take a while depending on model and data.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.