Title: Amazon Cloudfront PUSH generates S3::putObject Error
Last modified: April 25, 2017

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# Amazon Cloudfront PUSH generates S3::putObject Error

 *  [Serpentsoft](https://wordpress.org/support/users/serpentsoft/)
 * (@serpentsoft)
 * [9 years, 1 month ago](https://wordpress.org/support/topic/amazon-cloudfront-push-generates-s3putobject-error/)
 * Hi Pal,
 * I’m trying to upload my media files to Amazon S3 bucket which is already created
   from Amazon AWS (Not through plugin), I’m using a user belongs to a group [S3
   Full Access & Cloudfront Full Access] BUT on [Test S3 upload] I received this
   message
 * Error: Unable to put object (S3::putObject(): [InvalidRequest] The authorization
   mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.).
 * Thanks for your help.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Fist Full of Crisco](https://wordpress.org/support/users/fistfullofcrisco/)
 * (@fistfullofcrisco)
 * [9 years, 1 month ago](https://wordpress.org/support/topic/amazon-cloudfront-push-generates-s3putobject-error/#post-9068350)
 * This was fixed ages ago in the community build of W3 Total Cache so it works 
   for me. I am a bit surprised frederick (the author) didn’t add the fix into 9.5.3(
   havent tested it out so i am assuming u are trying 9.5.3) since he takes his 
   fixes from the community build routinely. He might be adding it into 9.5.4 instead.
   It’s caused because you are trying to access an endpoint that only supports signature
   v4. The community build is compatible with AWS v4 and gives you access to every
   available regional endpoint which was missing in 9.5.2 and 9.5.3 which has been
   nice.
 * Anyway, thought id give my 2cents.
 *  Thread Starter [Serpentsoft](https://wordpress.org/support/users/serpentsoft/)
 * (@serpentsoft)
 * [9 years, 1 month ago](https://wordpress.org/support/topic/amazon-cloudfront-push-generates-s3putobject-error/#post-9070005)
 * I believe Frederick don’t support this plugin anymore, I found someone ask about
   this issue 6 months ago and he didn’t reply .. [@banks305](https://wordpress.org/support/users/banks305/)
   [Amazon S3 putObject](https://wordpress.org/support/topic/unable-to-put-object-s3putobject-accessdenied-access-denied/)
    -  This reply was modified 9 years, 1 month ago by [Serpentsoft](https://wordpress.org/support/users/serpentsoft/).

Viewing 2 replies - 1 through 2 (of 2 total)

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## Tags

 * [amazon cloudfront](https://wordpress.org/support/topic-tag/amazon-cloudfront/)
 * [amazon s3](https://wordpress.org/support/topic-tag/amazon-s3/)

 * 2 replies
 * 2 participants
 * Last reply from: [Serpentsoft](https://wordpress.org/support/users/serpentsoft/)
 * Last activity: [9 years, 1 month ago](https://wordpress.org/support/topic/amazon-cloudfront-push-generates-s3putobject-error/#post-9070005)
 * Status: not resolved