http://edition.cnn.com/2017/07/22/us/pokemon-go-festival-comes-to-chicago/index.html

http://pokemongolive.com/en/post/pokemongofestupdate

A Pokemon Go festival in Chicago's Grant Park hit a glitch Saturday when attendees couldn't get Wi-Fi service on their mobile devices in sections of the park.

Niantic, the company that created the augmented reality game, ended up giving ticket refunds to the thousands of trainers -- the name for Pokemon players -- attending the event to mark the one-year anniversary of the product launch. It also gave them $100 in game currency and free game features.