diff --git a/src/main/java/info/istlab/ServerTester/JTAConsole.java b/src/main/java/info/istlab/ServerTester/JTAConsole.java
index 9e9954d..1bf1fc8 100644
--- a/src/main/java/info/istlab/ServerTester/JTAConsole.java
+++ b/src/main/java/info/istlab/ServerTester/JTAConsole.java
@@ -37,21 +37,15 @@
 
     StringBuilder originalContent;
     String mainSrc;
-    // ProcessBuilder pb;
-
-    // public JTAConsole(ProcessBuilder prob) {
 
     public JTAConsole(String title) {
         this(title, 200);
     }
 
     public JTAConsole(String title, int win_height) {
-        // pb = prob;
-
         frame = new JFrame(title);
         frame.getContentPane().add(new JScrollPane(this));
         frame.setSize(500, win_height);
-        frame.setVisible(true);
         frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
         frame.addWindowListener(this);
         if (winStack.size() > 0) {
@@ -66,15 +60,10 @@
         addKeyListener(this);
         addMouseListener(this);
 
-        // if (lastActivePoint != null){
-        // frame.setLocation(lastActivePoint.x+500, lastActivePoint.y);
-        // } else if (lastWindow != null && lastWindow.isVisible()){
-        // Point lastFrameP = lastWindow.frame.getLocationOnScreen();
-        // frame.setLocation(lastFrameP.x+500, lastFrameP.y);
-        // }
-        // lastWindow = this;
         winStack.push(this);
         originalContent = new StringBuilder();
+
+        frame.setVisible(true); // 表示を遅らせないと、RSJTextAreaでエラーが出る
     }
 
     public void Systemoutprintln(String s) {
@@ -92,16 +81,9 @@
         } catch (UnsupportedEncodingException e1) {
             e1.printStackTrace();
         }
-        // isreader = new InputStreamReader(proc.getInputStream());
         outstream = process.getOutputStream();
         String line;
         try {
-            // while(true){
-            // if (isreader.ready()){
-            // char[] buf = new char[1000];
-            // isreader.read(buf);
-            // }
-            // }
             while ((line = reader.readLine()) != null) {
                 Systemoutprintln(line);
             }
diff --git a/src/main/java/info/istlab/ServerTester/RemoteHostsWindow.java b/src/main/java/info/istlab/ServerTester/RemoteHostsWindow.java
index 0dff3ca..21de6e7 100644
--- a/src/main/java/info/istlab/ServerTester/RemoteHostsWindow.java
+++ b/src/main/java/info/istlab/ServerTester/RemoteHostsWindow.java
@@ -164,6 +164,7 @@
                     // new WhiteBoardClient(info[1], target);
                 }
             });
+            button.setToolTipText("接続先IPアドレス："+hostip);
             add(panel);
         }
     }
diff --git a/src/main/java/info/istlab/ServerTester/ServerPanel.java b/src/main/java/info/istlab/ServerTester/ServerPanel.java
index 0635e49..1979fd5 100644
--- a/src/main/java/info/istlab/ServerTester/ServerPanel.java
+++ b/src/main/java/info/istlab/ServerTester/ServerPanel.java
@@ -51,12 +51,14 @@
 
         stopButton = new JButton("Start");
         add(stopButton);
+        stopButton.setToolTipText("Server UniqueID: "+server.hashCode());
         stopButton.addActionListener(e -> {
             if (server.isClosed()) {
                 server.restart();
             } else {
                 server.close();
             }
+            stopButton.setToolTipText("Server UniqueID: "+server.hashCode());
             repaint();
             host.pack();
         });
@@ -73,6 +75,7 @@
 
         clientButton = new JButton("Client");
         add(clientButton);
+        clientButton.setToolTipText("接続IPアドレス: "+server.getBindAddress().substring(1));
         clientButton.addActionListener(e -> {
             if (name.startsWith("Web")) {
                 // open web browser
diff --git a/src/main/java/info/istlab/ServerTester/ServerPanel4WS.java b/src/main/java/info/istlab/ServerTester/ServerPanel4WS.java
index 8f661de..19dc79d 100644
--- a/src/main/java/info/istlab/ServerTester/ServerPanel4WS.java
+++ b/src/main/java/info/istlab/ServerTester/ServerPanel4WS.java
@@ -54,12 +54,14 @@
 
         stopButton = new JButton("Start");
         add(stopButton);
+        stopButton.setToolTipText("Server UniqueID: "+server.hashCode());
         stopButton.addActionListener(e -> {
             if (server.isClosed()) {
                 server = new SimpleWebSocketServer(server.getExpectedPort(), server.getExpectedAddress());
             } else {
                 server.stop();
             }
+            stopButton.setToolTipText("Server UniqueID: "+server.hashCode());
             repaint();
             host.pack();
         });
diff --git a/src/main/java/info/istlab/ServerTester/ThreadEchoServer.java b/src/main/java/info/istlab/ServerTester/ThreadEchoServer.java
index b0abf7c..e7758a6 100644
--- a/src/main/java/info/istlab/ServerTester/ThreadEchoServer.java
+++ b/src/main/java/info/istlab/ServerTester/ThreadEchoServer.java
@@ -28,8 +28,8 @@
 		while (thread != null) {
 			try {
 				Socket socket = serverSocket.accept();
-				System.out.println("[TES] ---\nConnection from: " + socket);
-				new RequestHandler4TES(socket);
+				System.out.println("[TES "+hashCode()+"] Connection from: " + socket);
+				new RequestHandler4TES(socket, this);
 			} catch(SocketException sx){
 				thread = null;
 			} catch (IOException e) {
@@ -45,9 +45,11 @@
 class RequestHandler4TES implements Runnable {
 	Socket sock;
 	Thread thread;
+	ThreadEchoServer server;
 
-	RequestHandler4TES(Socket s) {
+	RequestHandler4TES(Socket s, ThreadEchoServer server) {
 		sock = s;
+		this.server = server;
 		thread = new Thread(this);
 		thread.start();
 	}
@@ -56,20 +58,20 @@
 		PrintStream os;
 		BufferedReader br;
 		String line;
-		System.out.println("[TES] accept");
+		System.out.println("[TES "+server.hashCode()+"] accept  (BindAddr: "+server.getBindAddress()+")");
 		try {
 			br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
 			os = new PrintStream(sock.getOutputStream());
 			// クライアントからのメッセージを待ち、受け取ったメッセージをそのまま返す
 			while ((line = br.readLine()) != null) {
-				System.out.println("[TES] (Server received) " + line);
+				System.out.println("[TES "+server.hashCode()+"] (Server received) " + line);
 				os.println(line);
 			}
 		} catch (IOException e) {
 			// os.close();
 			System.out.println(e);
 		} finally {
-			System.out.println("[TES] disconnected " + sock.toString());
+			System.out.println("[TES "+server.hashCode()+"] disconnected " + sock.toString());
 		}
 	}
 }
\ No newline at end of file