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   ASPClassic
Error Code   0x00000000
Requested URL   https://www.aqua-tropic.com:443/entradas/dia-de-la-familia-numerosa/%22https:/support.microsoft.com/es-es/help/17442/%22https:/support.mozilla.org/es/kb/atraccion.asp?id=3&id_menu=2&id_submenu=8
Physical Path   H:\webspace\hostings\aqua-tropic.com\hosting\www\entradas\dia-de-la-familia-numerosa\%22https:\support.microsoft.com\es-es\help\17442\%22https:\support.mozilla.org\es\kb\atraccion.asp
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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