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   ExtensionlessUrl-Integrated-4.0
Error Code   0x00000000
Requested URL   https://www.dataio.cn:443/%E5%85%AC%E5%8F%B8%E4%BF%A1%E6%81%AF/%E5%85%B3%E4%BA%8EData-I-O/%E6%96%B0%E9%97%BB%E5%8F%91%E5%B8%83/category/1/data-io-%E9%92%88%E5%AF%B9%E6%97%A5%E7%9B%8A%E5%B4%9B%E8%B5%B7%E7%9A%84e-mmc%E8%8A%AF%E7%89%87%E5%B8%82%E5%9C%BA%E6%9C%80%E6%96%B0%E6%8E%A8%E5%87%BAflxhd-%E5%A4%8D%E5%88%B6%E8%87%AA%E5%8A%A8%E5%8C%96%E8%AE%BE%E5%A4%87-82
Physical Path   D:\Web\DIO_DNNv9_PROD\%E5%85%AC%E5%8F%B8%E4%BF%A1%E6%81%AF\%E5%85%B3%E4%BA%8EData-I-O\%E6%96%B0%E9%97%BB%E5%8F%91%E5%B8%83\category\1\data-io-%E9%92%88%E5%AF%B9%E6%97%A5%E7%9B%8A%E5%B4%9B%E8%B5%B7%E7%9A%84e-mmc%E8%8A%AF%E7%89%87%E5%B8%82%E5%9C%BA%E6%9C%80%E6%96%B0%E6%8E%A8%E5%87%BAflxhd-%E5%A4%8D%E5%88%B6%E8%87%AA%E5%8A%A8%E5%8C%96%E8%AE%BE%E5%A4%87-82
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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