HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   ApiURIs-ISAPI-Integrated-4.0
Error Code   0x00000000
Requested URL   http://cn.audionetwork.com:80/browse/m/%E9%9F%B3%E4%B9%90%E9%A3%8E%E6%A0%BC/%E5%9B%BD%E6%AD%8C/%E5%8C%88%E7%89%99%E5%88%A9/results
Physical Path   c:\websites\anw.website\live\web\9879\browse\m\%E9%9F%B3%E4%B9%90%E9%A3%8E%E6%A0%BC\%E5%9B%BD%E6%AD%8C\%E5%8C%88%E7%89%99%E5%88%A9\results
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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