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-Integrated-4.0
Error Code   0x00000000
Requested URL   http://www.govwire.co.uk:80/news/hm-treasury/wales%EF%BF%BD%EF%BF%BD%EF%BF%BD-thriving-financial-services-industry-and-the-livelihoods-of-welsh-students-dependent-on-eu-membership-says-uk-city-minister-4697
Physical Path   C:\inetpub\wwwroot\govwire.co.uk\news\hm-treasury\wales%EF%BF%BD%EF%BF%BD%EF%BF%BD-thriving-financial-services-industry-and-the-livelihoods-of-welsh-students-dependent-on-eu-membership-says-uk-city-minister-4697
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.

View more information »