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   PageHandlerFactory-Integrated-4.0
Error Code   0x00000000
Requested URL   https://epc-co.com:443/epc/tw/%E4%B8%BB%E9%A0%81/ctl/login/PortalId/0.aspx?returnurl=%252Fepc%252Fcn%252F%25E5%25BA%2594%25E7%2594%25A8%252F%25E7%259B%25B4%25E6%25B5%2581-%25E7%259B%25B4%25E6%25B5%2581%25E7%2594%25B5%25E6%25BA%2590%25E8%25BD%25AC%25E6%258D%25A2%252FEPC2152-free-samples.aspx
Physical Path   C:\inetpub\wwwroot\epc\tw\%E4%B8%BB%E9%A0%81\ctl\login\PortalId\0.aspx
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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