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: Sun, 06 Sep 2026 07:36:48 GMT
Content-Type: application/xml
Content-Length: 362837
Connection: keep-alive
Server: cloudflare
CF-RAY: a36bce03ca2cfe58-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
20260906T073648Z
20260906/auto/s3/aws4_request
c1beb87a004369f1b52e585a2f4db2ac417cf15e02addf702b11c747a7b7e09c</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 30 36 54 30 37 33 36 34 38 5a 0a 32 30 32 36 30 39 30 36 2f 61 75 74 6f 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 63 31 62 65 62 38 37 61 30 30 34 33 36 39 66 31 62 35 32 65 35 38 35 61 32 66 34 64 62 32 61 63 34 31 37 63 66 31 35 65 30 32 61 64 64 66 37 30 32 62 31 31 63 37 34 37 61 37 62 37 65 30 39 63</StringToSignBytes><CanonicalRequest>GET
/

host:59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com
x-amz-content-sha256:UNSIGNED-PAYLOAD
x-amz-date:20260906T073648Z

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