diff --git a/.gitignore b/.gitignore
index 2e65144..32dae03 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 node_modules/
 npm-debug.log
 yarn-error.log
-.env
 
 # Logs
 logs/
@@ -27,9 +26,7 @@ build/Release/
 .yarn-integrity
 
 # dotenv environment variables file
-.env
-.env.test
-.env.production
+.env*
 
 # Next.js build output
 .next/
@@ -66,6 +63,4 @@ $RECYCLE.BIN/
 *.swp
 *~
 
-# Docker files
-docker-compose.override.yml
 zplData_*.txt
diff --git a/README.md b/README.md
index 943c4d2..3b7d7a0 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ Este proyecto es una aplicación backend que utiliza Node.js, Docker, MariaDB y
 
     ```env
     DB_HOST=mariadb
+    DB_PORT=3306
     DB_USER=user
     DB_PASSWORD=password
     DB_NAME=database
diff --git a/worker/worker.js b/worker/worker.js
index 11a26c8..ab7c90d 100644
--- a/worker/worker.js
+++ b/worker/worker.js
@@ -39,25 +39,18 @@ async function getConnectionWithRetries(retries = 3, delay = 5000) {
 }
 
 //Función para enviar ZPL a la impresora con TCP socket y reintentos
-async function sendZPL(zplContent, ipAddress, retries = 2, delay = 3000) {
+async function sendZPL(zplContent, ipAddress, retries = 3, delay = 2000) {
     const port = 9100; // puerto que se utiliza para el envio de zpl junto con el ipAddress
 
     for (let attempt = 0; attempt < retries; attempt++) {
         try {
             const result = await new Promise((resolve, reject) => {
                 const client = new net.Socket();
-                let dataReceived = false; // Bandera para rastrear si se recibió respuesta
 
                 client.connect(port, ipAddress, () => {
-                    logger.info(`Conexión establecida con la impresora en el intento ${attempt + 1}`);
-                    client.write(zplContent);
-                });
-
-                client.on('data', data => {
-                    dataReceived = true; // Se ha recibido respuesta
-                    logger.info(`Respuesta de la impresora: ${data.toString()}`);
-                    client.destroy();
-                    resolve('success');
+                    client.write(zplContent, () => {
+                        resolve('success');
+                    });
                 });
 
                 client.on('error', error => {
@@ -68,19 +61,14 @@ async function sendZPL(zplContent, ipAddress, retries = 2, delay = 3000) {
 
                 client.on('close', () => {
                     logger.info('Conexión cerrada');
-                    // Si no se recibió ningún dato, considerarlo como cerrado exitosamente
-                    if (dataReceived)
-                        resolve('success'); // Considerar éxito si la impresora cerró la conexión sin error
-                    else
-                        resolve('closed');
+                    resolve('closed');
                 });
             });
 
             if (result === 'success')
                 return 'success';
             else if (result === 'closed') {
-                if(retries >= attempt)
-                    return 'error';
+                if (retries >= attempt) return 'error';
                 continue; // Reintentar si la conexión se cerró sin error
             }
 
@@ -159,7 +147,7 @@ async function processRecord(record) {
     try {
         await connection.beginTransaction();
 
-        logger.info(`Procesando expeditionFk=${record.expeditionFk} en worker`);
+        logger.info(`Procesando expedición = ${record.expeditionFk}`);
         const zplData = generateZPL(record, label);
 
         const filePath = path.join(__dirname, `zplData_${record.expeditionFk}.txt`);
@@ -173,7 +161,6 @@ async function processRecord(record) {
         const sendResult = await sendZPL(zplContent, ipAddress);
 
         if (sendResult === 'success') {
-            logger.info(`Etiqueta impresa correctamente para expeditionFk=${record.expeditionFk}`);
             await connection.query(
                 'UPDATE expedition_PrintOut SET isPrinted = 1 WHERE expeditionFk = ?',
                 [record.expeditionFk]
@@ -186,7 +173,6 @@ async function processRecord(record) {
                 [record.expeditionFk]
             );
         }
-
         parentPort.postMessage('done');
         await connection.commit();
     } catch (error) {