diff --git a/server/server.js b/server/server.js
index 567ff49..6badbde 100644
--- a/server/server.js
+++ b/server/server.js
@@ -50,7 +50,6 @@ let needSetup = false;
             version,
         })
 
-        console.log('a user connected');
         totalClient++;
 
         if (needSetup) {
@@ -59,7 +58,6 @@ let needSetup = false;
         }
 
         socket.on('disconnect', () => {
-            console.log('user disconnected');
             totalClient--;
         });
 
diff --git a/src/mixins/socket.js b/src/mixins/socket.js
index 42de1eb..0c4d68e 100644
--- a/src/mixins/socket.js
+++ b/src/mixins/socket.js
@@ -35,7 +35,8 @@ export default {
         window.addEventListener('resize', this.onResize);
 
         let wsHost;
-        if (localStorage.dev === "dev") {
+        const env = process.env.NODE_ENV || "production";
+        if (env === "development" || localStorage.dev === "dev") {
             wsHost = ":3001"
         } else {
             wsHost = ""
@@ -45,6 +46,10 @@ export default {
             transports: ['websocket']
         });
 
+        socket.on("connect_error", (err) => {
+            console.error(`Failed to connect to the backend. Socket.io connect_error: ${err.message}`);
+        });
+
         socket.on('info', (info) => {
             this.info = info;
         });
@@ -158,7 +163,7 @@ export default {
         },
 
         getSocket() {
-          return socket;
+            return socket;
         },
 
         toastRes(res) {