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   ExtensionlessUrlHandler-ISAPI-4.0_32bit
Error Code   0x00000000
Requested URL   http://ambulatorioportalucchese.com:80/%E8%91%89%E3%82%92%E9%9B%86%E3%82%81%E3%82%8B%E7%AC%AC%E4%B8%89%E5%9F%B7%E7%9D%80/%E9%80%81%E9%87%91%E6%84%9F%E8%AC%9D%E7%A5%AD%E3%83%A2%E3%83%83%E3%82%AF/
Physical Path   D:\inetpub\webs\ambulatorioportalucchesecom\%E8%91%89%E3%82%92%E9%9B%86%E3%82%81%E3%82%8B%E7%AC%AC%E4%B8%89%E5%9F%B7%E7%9D%80\%E9%80%81%E9%87%91%E6%84%9F%E8%AC%9D%E7%A5%AD%E3%83%A2%E3%83%83%E3%82%AF\
Logon Method   Not yet determined
Logon User   Not yet determined
Request Tracing Directory   D:\LogFiles\FailedReqLogFiles

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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