You can check out the common iOS 15 problems and their solutions using the linked article.Īs mentioned above, a sluggish internet connection might be the primary culprit behind this problem. Therefore, we not only dig into the Settings but also try to troubleshoot software-related glitches that have become part and parcel of iOS 15. Besides, outdated settings and software glitches could also be responsible for the iCloud files not downloading problem. If you are dealing with large files, make sure you have a strong and stable cellular/ Wi-Fi connection. A poor internet connection is usually the main reason why iCloud files often fail to download on iPhones and iPads.