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: Fri, 06 Nov 2026 05:54:10 GMT
Content-Type: application/xml
Content-Length: 362244
Connection: keep-alive
Vary: Origin
Server: cloudflare
CF-RAY: a561d78c49bf8d29-DFW

<?xml version="1.0" encoding="UTF-8"?><ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Name>speedy</Name><Contents><Key>imagenes/.DS_Store</Key><Size>6148</Size><LastModified>2026-09-26T02:14:13.261Z</LastModified><Owner><ID>59dacfc6bd799d5c0a9f77e5be29ea44</ID><DisplayName>59dacfc6

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
20261106T055410Z
20261106/auto/s3/aws4_request
edece195a63882f496ac4c51de335f42ec41f68a815f65387a1fa963d1175d5d</StringToSign><StringToSignBytes>41 57 53 34 2d 48 4d 41 43 2d 53 48 41 32 35 36 0a 32 30 32 36 31 31 30 36 54 30 35 35 34 31 30 5a 0a 32 30 32 36 31 31 30 36 2f 61 75 74 6f 2f 73 33 2f 61 77 73 34 5f 72 65 71 75 65 73 74 0a 65 64 65 63 65 31 39 35 61 36 33 38 38 32 66 34 39 36 61 63 34 63 35 31 64 65 33 33 35 66 34 32 65 63 34 31 66 36 38 61 38 31 35 66 36 35 33 38 37 61 31 66 61 39 36 33 64 31 31 37 35 64 35 64</StringToSignBytes><CanonicalRequest>GET
/

host:59dacfc6bd799d5c0a9f77e5be29ea44.r2.cloudflarestorage.com
x-amz-content-sha256:UNSIGNED-PAYLOAD
x-amz-date:20261106T055410Z

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