diff --git a/examples/device/webusb_serial/website/application.js b/examples/device/webusb_serial/website/application.js
index 090ab5748..376faec44 100644
--- a/examples/device/webusb_serial/website/application.js
+++ b/examples/device/webusb_serial/website/application.js
@@ -369,7 +369,7 @@
     }
 
     setStatus(msg, level = 'info') {
-      console.log(msg);
+      console.error(msg);
       uiStatusSpan.textContent = msg;
       uiStatusSpan.className = 'status status-' + level;
     }
@@ -596,24 +596,33 @@
       }
     }
 
+    async autoReconnectTimeout() {
+        this.reconnectTimeoutId = null;
+        if (!uiAutoReconnectCheckbox.checked) {
+          this.setStatus('Auto-reconnect stopped.', 'info');
+          return;
+        }
+        if (this.currentPort && !this.currentPort.isConnected) {
+          try {
+            await this.currentPort.connect();
+            this.setStatus('Reconnected successfully', 'info');
+          } catch (error) {
+            this.setStatus(`Reconnect failed: ${error.message}`, 'error');
+            // Try again after a delay
+            this.tryAutoReconnect();
+          } finally {
+            this.updateUIConnectionState();
+          }
+        }
+    }
+
     tryAutoReconnect() {
       this.updateUIConnectionState();
       if (!uiAutoReconnectCheckbox.checked) return;
       if (this.reconnectTimeoutId !== null) return; // already trying
       this.setStatus('Attempting to auto-reconnect...', 'info');
       this.reconnectTimeoutId = setTimeout(async () => {
-        this.reconnectTimeoutId = null;
-        if (!uiAutoReconnectCheckbox.checked) {
-          this.setStatus('Auto-reconnect stopped.', 'info');
-          return;
-        }
-        if (this.currentPort) {
-          try {
-            await this.currentPort.connect();
-          } finally {
-            this.updateUIConnectionState();
-          }
-        }
+        await this.autoReconnectTimeout();
       }, 1000);
     }
 
@@ -762,14 +771,15 @@
       // save <iso_date_time>,<received_line>
       let csvContent = 'data:text/csv;charset=utf-8,';
       for (const entry of this.receivedData) {
-        let line = new Date(entry.time).toISOString() + ',"' + entry.text.replace(/[\r\n]+$/, '') + '"';
+        let sanitizedText = entry.text.replace(/"/g, '""').replace(/[\r\n]+$/, '');
+        let line = new Date(entry.time).toISOString() + ',"' + sanitizedText + '"';
         csvContent += line + '\n';
       }
 
       const encodedUri = encodeURI(csvContent);
       const link = document.createElement('a');
       link.setAttribute('href', encodedUri);
-      const filename = new Date().toISOString() + '_tinyusb_received_serial_data.csv';
+      const filename = new Date().toISOString().replace(/:/g, '-') + '_tinyusb_received_serial_data.csv';
       link.setAttribute('download', filename);
       document.body.appendChild(link);
       link.click();
diff --git a/examples/device/webusb_serial/website/index.html b/examples/device/webusb_serial/website/index.html
index bf02d0294..60002ff0a 100644
--- a/examples/device/webusb_serial/website/index.html
+++ b/examples/device/webusb_serial/website/index.html
@@ -35,7 +35,7 @@
       </label>
       <label for="auto_reconnect_checkbox" class="controls">
         <input type="checkbox" id="auto_reconnect_checkbox" />
-        Auto Reconnect
+        Auto Reconnect WebUSB
       </label>
       <button id="forget_device_btn" class="controls btn danger">Forget Device</button>
       <button id="forget_all_devices_btn" class="controls btn danger">Forget All Devices</button>
diff --git a/examples/device/webusb_serial/website/serial.js b/examples/device/webusb_serial/website/serial.js
index 55035c81f..19827f016 100644
--- a/examples/device/webusb_serial/website/serial.js
+++ b/examples/device/webusb_serial/website/serial.js
@@ -116,7 +116,7 @@ class SerialPort {
     if (!this._port.writable) {
       throw new Error('Port is not writable');
     }
-    this._writer = port.writeable.getWriter();
+    this._writer = this._port.writable.getWriter();
     if (!this._writer) {
       throw new Error('Failed to get writer from port');
     }
@@ -141,6 +141,13 @@ class WebUsbSerialPort {
     this._readLoopPromise = null;
     this._initialized = false;
     this._keepReading = true;
+
+    this._vendorId = device.vendorId;
+    this._productId = device.productId;
+  }
+
+  _isSameWebUsbSerialPort(webUsbSerialPort) {
+    return this._vendorId === webUsbSerialPort._vendorId && this._productId === webUsbSerialPort._productId;
   }
 
   /// Connect and start reading loop
@@ -152,14 +159,9 @@ class WebUsbSerialPort {
         console.error('Error disconnecting previous device:', error);
       }
 
-      if (this._readLoopPromise) {
-        try {
-          await this._readLoopPromise;
-        } catch (error) {
-          console.error('Error in read loop:', error);
-        }
-      }
-      this._readLoopPromise = null;
+      const webUsbSerialPorts = await serial.getWebUsbSerialPorts();
+      const webUsbSerialPort = webUsbSerialPorts.find(serialPort => this._isSameWebUsbSerialPort(serialPort));
+      this._device = webUsbSerialPort ? webUsbSerialPort._device : this._device;
     }
     this._initialized = true;
 
diff --git a/examples/device/webusb_serial/website/style.css b/examples/device/webusb_serial/website/style.css
index 3af2668e0..7b8b6029d 100644
--- a/examples/device/webusb_serial/website/style.css
+++ b/examples/device/webusb_serial/website/style.css
@@ -221,6 +221,12 @@ body.dark-mode {
   color: #d4d4d4;
 }
 
+body.dark-mode input[type="checkbox"] {
+  border-color: #888;
+  accent-color: #2e2e2e;
+  opacity: 0.8;
+}
+
 body.dark-mode .btn-theme {
   background-color: #b0b0b0;
   color: #000;
@@ -251,6 +257,7 @@ body.dark-mode .input:focus {
 
 body.dark-mode .scrollbox {
   background-color: #252526;
+  scrollbar-color: #555 #2e2e2e;
   border: 1px solid #444;
 }
 
@@ -287,7 +294,3 @@ body.dark-mode option {
   background-color: #3c3c3c;
   color: #f0f0f0;
 }
-
-body.dark-mode .scrollbox {
-  scrollbar-color: #555 #2e2e2e;
-}