This topic describes the causes of and solution to the HTTP 499 status code in log entries.
Cause
The HTTP 499 status code indicates that the visitor chooses to close the connections to CDN edge nodes. The CDN edge nodes are running as expected.
Visitors decide to close connections to CDN edge nodes due to personal reasons or Internet service provider (ISP) link issues.
Solution
- Troubleshoot for potential issues on the client.
- Contact the ISP that the client uses to troubleshoot link errors.