Error uploading image to S3 AWS

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C#

.NET

AWS

When trying to upload an image from the website to the AWS bucket I get an ajax error. However, when I run the application from visual studio, it loads without problems.

The code C# I use in the controller is the following:

[HttpPost]
public ActionResult UploadFile(HttpPostedFileBase file)
{
    var s3Client = new AmazonS3Client(accesskey, secretkey, bucketRegion);
    var fileTransferUtility = new TransferUtility(s3Client);
    try
    {
        if (file.ContentLength > 0)
        {
            var filePath = Path.Combine(Server.MapPath("~/"), Path.GetFileName(file.FileName));
            var fileTransferUtilityRequest = new TransferUtilityUploadRequest
            {
                BucketName = bucketName,
                FilePath = filePath,
                StorageClass = S3StorageClass.StandardInfrequentAccess,
                Key = keyName,
                CannedACL = S3CannedACL.PublicRead
            };
            fileTransferUtility.Upload(fileTransferUtilityRequest);
            fileTransferUtility.Dispose();
        }
        ViewBag.Message = "File Uploaded Successfully!!";
    }
    catch (AmazonS3Exception amazonS3Exception)
    {
        if (amazonS3Exception.ErrorCode != null &&
            (amazonS3Exception.ErrorCode.Equals("InvalidAccessKeyId")
            ||
            amazonS3Exception.ErrorCode.Equals("InvalidSecurity")))
        {
            ViewBag.Message = "Check the provided AWS Credentials.";
        }
        else
        {
            ViewBag.Message = "Error occurred: " + amazonS3Exception.Message;
        }
    }
    return RedirectToAction("Index");
}

What I have tried:

I have tried other options that I found online with no results. The region is USEast2 and the code is as follows:

IAmazonS3 client = new AmazonS3Client(accesskey, secretkey, bucketRegion);  

FileInfo localFile = new FileInfo(@"c:\test.txt");  
string destPath = @"folder\sub-folder\test.txt"; // <-- high-level s3 path uses \
 
S3FileInfo s3File = new S3FileInfo(client, "my-bucket-name", destPath);  
if (!s3File.Exists)  
{  
    using (var s3Stream = s3File.Create()) // <-- create file in S3  
    {  
        localFile.OpenRead().CopyTo(s3Stream); // <-- copy the content to S3  
    }  
}

Another option that I have tried is with the following code and the error is presented on the line
InputStream = localFile.OpenRead(),

There the error says that it cannot find the file path

PutObjectRequest request = new PutObjectRequest()
{
    InputStream = localFile.OpenRead(),
    BucketName = bucketName,
    Key = path // <-- in S3 key represents a path
};

PutObjectResponse response = client.PutObject(request);

I bring the image with this code, where I capture the image in the upload input

FileInfo localFile = new FileInfo(image.FileName);