Diagnóstico de Cloudflare R2

Verificando credenciales:
Account ID: 59dacfc6bd...ea44 (longitud: 32)
Access Key: 2ca7b68780...b2ee (longitud: 32)
Secret Key: 93083a07af...15cb (longitud: 64)
Bucket: speedy

Verificando extensiones PHP:
cURL: ✅ Habilitado
OpenSSL: ✅ Habilitado

Endpoint construido:
URL: https://59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com/speedy/

Prueba 1: Verificando conectividad básica
HTTP Code: 400
✅ Conexión establecida

Prueba 2: Probando autenticación AWS Signature V4
HTTP Code: 200
✅ AUTENTICACIÓN EXITOSA!
Respuesta:

HTTP/1.1 200 OK
Date: Thu, 17 Sep 2026 17:16:50 GMT
Content-Type: application/xml
Content-Length: 362837
Connection: keep-alive
Server: cloudflare
CF-RAY: a3c9c2ca6ebb2e55-DFW

<?xml version="1.0" encoding="UTF-8"?><ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Name>speedy</Name><Contents><Key>imagenes/.JPEG</Key><Size>0</Size><LastModified>2026-03-30T19:33:48.553Z</LastModified><Owner><ID>59dacfc6bd799d5c0a9f77e5be29ea44</ID><DisplayName>59dacfc6bd799d5c0a9f77e5be29e

Prueba 3: Intentando listar buckets
HTTP Code: 403
Respuesta:

<?xml version="1.0" encoding="UTF-8"?><Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your secret access key and signing method.</Message><StringToSign>AWS4-HMAC-SHA256
20260917T171650Z
20260917/auto/s3/aws4_request
fdfd6f307aee11f7d37a159c744ed126ca0f755b2139244a1a474262c80b352a</StringToSign><StringToSignBytes>41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 32 36 30 39 31 37 54 31 37 31 36 35 30 5a 0a 32 30 32 36 30 39 31 37 2f 61 75 74 6f 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 66 64 66 64 36 66 33 30 37 61 65 65 31 31 66 37 64 33 37 61 31 35 39 63 37 34 34 65 64 31 32 36 63 61 30 66 37 35 35 62 32 31 33 39 32 34 34 61 31 61 34 37 34 32 36 32 63 38 30 62 33 35 32 61</StringToSignBytes><CanonicalRequest>GET
/

host:59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com
x-amz-content-sha256:UNSIGNED-PAYLOAD
x-amz-date:20260917T171650Z

host;x-amz-content-sha256;x-amz-date
UNSI