diff --git a/java_console/io/src/main/java/com/rusefi/io/LinkManager.java b/java_console/io/src/main/java/com/rusefi/io/LinkManager.java
index 1464e78fa5..ff56cc1375 100644
--- a/java_console/io/src/main/java/com/rusefi/io/LinkManager.java
+++ b/java_console/io/src/main/java/com/rusefi/io/LinkManager.java
@@ -34,6 +34,7 @@ public class LinkManager {
     private final Logger logger;
 
     private LinkConnector connector;
+    private boolean isStarted;
 
     public LinkManager(Logger logger) {
         this.logger = logger;
@@ -175,7 +176,15 @@ public class LinkManager {
         connector.connectAndReadConfiguration(stateListener);
     }
 
+    public LinkConnector getConnector() {
+        return connector;
+    }
+
     public void start(String port) {
+        if (isStarted) {
+            throw new IllegalStateException("Already started");
+        }
+        isStarted = true;
         Objects.requireNonNull(port, "port");
         logger.info("LinkManager: Starting " + port);
         if (isLogViewerMode(port)) {
diff --git a/java_console/ui/src/main/java/com/rusefi/ui/console/MainFrame.java b/java_console/ui/src/main/java/com/rusefi/ui/console/MainFrame.java
index 1754949162..0429fca8d2 100644
--- a/java_console/ui/src/main/java/com/rusefi/ui/console/MainFrame.java
+++ b/java_console/ui/src/main/java/com/rusefi/ui/console/MainFrame.java
@@ -67,7 +67,7 @@ public class MainFrame {
         });
 
         final LinkManager linkManager = consoleUI.uiContext.getLinkManager();
-        linkManager.startAndConnect(consoleUI.port, new ConnectionStateListener() {
+        linkManager.getConnector().connectAndReadConfiguration(new ConnectionStateListener() {
             @Override
             public void onConnectionFailed() {
             }