Canon VK-64 Administrator's Manual page 266

List of Messages
●
A List of HTTP Error Codes
Codes
400 Bad Request
401 Unauthorized
403 Forbidden
500 Internal Server Error
502 Bad Gateway
503 Service Unavailable
504 Gateway Time-out
266
Error Messages Description
When more than 4 Storage Servers are
connected when a Sony camera is used.
This is recorded when the operation
mode of the camera server is mpeg4.
The user authentication or password for
connecting to the camera server is
incorrect.
This is recorded when the connection
cannot be established due to the IP
address restriction on the camera server
side (It may also be returned by the
proxy server).
This occurs when the webview server is
not running even when the HTTP server
is running. This may also be recorded
even during normal operation if the
camera server is restarted.
This is recorded when the proxy server
returned an HTTP 502 error (which
occurs when the proxy server receives
an error from the upper proxy).
This is recorded when the proxy server
returned an HTTP 503 error (which
occurs when the proxy server failed to
connect to the camera server).
This is recorded when the proxy server
returned an HTTP 504 error (which
occurs when the proxy server could not
receive a reply from the upper proxy).