diff --git a/server/datahandler.js b/server/datahandler.js
index 4b0f16a..34b6644 100644
--- a/server/datahandler.js
+++ b/server/datahandler.js
@@ -425,6 +425,18 @@ function handleData(wss, receivedData, rdsWss) {
     }
 }
 
+// Serialport retry code when port is open but communication is lost (additional code in index.js)
+isSerialportAlive = true;
+lastFrequencyAlive = '87.500';
+setInterval(() => {
+  lastFrequencyAlive = initialData.freq;
+  // Activate serialport retry if handleData has not been executed for over 10 seconds
+  if (((Date.now() - lastUpdateTime) > 8000) && !isSerialportRetrying && serverConfig.xdrd.wirelessConnection === false) {
+    isSerialportAlive = false;
+    isSerialportRetrying = true;
+  }
+}, 2000);
+
 function showOnlineUsers(currentUsers) {
   dataToSend.users = currentUsers;
   initialData.users = currentUsers;
diff --git a/server/index.js b/server/index.js
index fa0742d..449664d 100644
--- a/server/index.js
+++ b/server/index.js
@@ -126,6 +126,28 @@ function checkIPv6Support(callback) {
   });
 }
 
+// Serialport retry code when port is open but communication is lost (additional code in datahandler.js)
+isSerialportRetrying = false;
+
+setInterval(() => {
+  if (!isSerialportAlive && serverConfig.xdrd.wirelessConnection === false) {
+    isSerialportAlive = true;
+    isSerialportRetrying = true;
+    if (serialport && serialport.isOpen) {
+      logWarn('Communication lost from ' + serverConfig.xdrd.comPort + ', force closing serialport.');
+      setTimeout(() => {
+        serialport.close((err) => {
+          if (err) {
+            logError('Error closing serialport: ', err.message);
+          }
+        });
+      }, 1000);
+    } else {
+      logWarn('Communication lost from ' + serverConfig.xdrd.comPort + '.');
+    }
+  }
+}, 2000);
+
 // Serial Connection
 function connectToSerial() {
 if (serverConfig.xdrd.wirelessConnection === false) {
@@ -150,6 +172,7 @@ if (serverConfig.xdrd.wirelessConnection === false) {
     }
     
     logInfo('Using COM device: ' + serverConfig.xdrd.comPort);
+    isSerialportAlive = true;
     setTimeout(() => {
         serialport.write('x\n');
     }, 3000);
@@ -163,9 +186,12 @@ if (serverConfig.xdrd.wirelessConnection === false) {
         serialport.write('T' + Math.round(serverConfig.defaultFreq * 1000) + '\n');
         dataHandler.initialData.freq = Number(serverConfig.defaultFreq).toFixed(3);
         dataHandler.dataToSend.freq = Number(serverConfig.defaultFreq).toFixed(3);
+      } else if (lastFrequencyAlive && isSerialportRetrying) { // Serialport retry code when port is open but communication is lost
+        serialport.write('T' + (lastFrequencyAlive * 1000) + '\n');
       } else {
         serialport.write('T87500\n');
       }
+      isSerialportRetrying = false;
 
       serialport.write('A0\n');
       serialport.write('F-1\n');
@@ -190,6 +216,7 @@ if (serverConfig.xdrd.wirelessConnection === false) {
   serialport.on('close', () => {
     logWarn('Disconnected from ' + serverConfig.xdrd.comPort + '. Attempting to reconnect.');
     setTimeout(() => {
+        isSerialportRetrying = true;
         connectToSerial();
     }, 5000);
   });