My suggestion about checking the router was just that - problemsolving. I've been a member of this community for many, many years. When I first joined, people would post a problem they were having and ask for suggestions on how to fix the problem. It was NOT a "***** list"!!! People truly were trying to solve their problem and not trash Apple.
Over the years, that has changed, and not for the better. ALL electronics, especially computer-related ones can have problems!!! Every single person's home or use-environment is slightly different than anothers. Apple has no possible way of knowing how each one of us uses our computers/iPads/iPhones - they do the best they can to make a product that is as close to universally useable as is possible.
When one has a problem, the logical way to approach it is to describe the problem and then what steps one has made to remedy it. They ask the community for help/suggestions. Just returning and buying multiple ones and returning them does not solve the problem! One must sometimes be a detective and when the answer is found, it usually becomes so obvious that one thinks "duh!". Then we share this information with others.
Trashing a product is not going to solve ones problem. Going through the entire problem-solving process MAY solve it. It's always worth a try before returning a product as faulty. This is especially true when the majority of people have NOT had a problem. Those who have not, are not posting as they are too busy enjoying their new iPads!
We learn by sharing, not by having a group-***** session.