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   aspNetCore
Error Code   0x00000000
Requested URL   http://www.radiopolsha.pl:80/6/139/Artykul/401138,%D0%92-%D0%B7%D0%B8%D0%BC%D0%BD%D0%B5%D0%B9-%D1%81%D1%82%D0%BE%D0%BB%D0%B8%D1%86%D0%B5-%D0%9F%D0%BE%D0%BB%D1%8C%D1%88%D0%B8-%D1%80%D0%B0%D0%B7%D0%B3%D0%B0%D1%80-%D0%BB%D1%8B%D0%B6%D0%BD%D0%BE%D0%B3%D0%BE-%D1%81%D0%B5%D0%B7%D0%BE%D0%BD%D0%B0
Physical Path   \\oldfileshare\www$\redirect2.polskieradio.pl\6\139\Artykul\401138,%D0%92-%D0%B7%D0%B8%D0%BC%D0%BD%D0%B5%D0%B9-%D1%81%D1%82%D0%BE%D0%BB%D0%B8%D1%86%D0%B5-%D0%9F%D0%BE%D0%BB%D1%8C%D1%88%D0%B8-%D1%80%D0%B0%D0%B7%D0%B3%D0%B0%D1%80-%D0%BB%D1%8B%D0%B6%D0%BD%D0%BE%D0%B3%D0%BE-%D1%81%D0%B5%D0%B7%D0%BE%D0%BD%D0%B0
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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