Caching a novel meant saving the online reading rights of the novel on the local computer so that it could be read when needed. However, there were several reasons why he couldn't read the novel he had just downloaded: 1. Cached file corruption: If the novel file is corrupted or deleted, it cannot be read even if it has been cached to the local computer. 2. Internet connection problems: If the network connection is unstable or interrupted, it may cause the novel to be unable to be downloaded and read. 3. Browser Restrictions: Some browser may restrict the ability to store your novel, so you need to use another browser to store your novel and read it. 4. Web problems: If the novel reading website has problems such as server failure or website shut down, even if the novel is stored, it will not be able to read. Therefore, it is recommended to use the novel buffer function with caution to avoid encountering the above problems.