There could be many reasons why he could not read a novel that he had downloaded, including but not limited to the following: 1. Cached file is damaged or missing: If the novel file is damaged or missing, the novel content cannot be loaded correctly, resulting in failure to view. 2. Unstable network connection: If the network connection is unstable, the novel that is being stored in the server may not be transferred to the server correctly, resulting in a failure to view the novel. 3. Problems with the browser settings: Sometimes, the settings of the browser may affect the viewing effect of the novel, such as prohibiting the buffer or limiting the size of the buffer. 4. Caching server problem: If there is a problem with the server, the novel may not be transmitted to the client correctly, resulting in a failure to view. If none of the above problems were solved, he could try to download the novel again or change the browser to solve it. If the problem still exists, it is recommended to contact the network operator or the buffer service for further trouble-shooting.