Server failed to authenticate the request error while downloading the response from esultUrl

Hi ,

When I am trying to download the Download recognition result , getting the below error:

<?xml version="1.0" encoding="utf-8"?>

<Error>

<Code>AuthenticationFailed</Code>

<Message>Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature.

RequestId:c43746e5-0001-0004-53f0-dd0798000000

Time:2017-06-05T11:38:18.9420699Z</Message>

<AuthenticationErrorDetail>Request date header not specified</AuthenticationErrorDetail>

</Error>

Please find the getTasKStatus response below:

<?xml version="1.0" encoding="utf-8"?>

</response>

Can anyone help me how to resolve this?

Thanks,

Mahesh.

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