ASUS Dual-Band AC1750 Gigabit Router (RT-AC66U) User Manual

1. はじめに

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your ASUS RT-AC66U Dual-Band AC1750 Gigabit Router. Please read this manual thoroughly to ensure proper use and optimal performance of your device.

The ASUS RT-AC66U Gigabit wireless dual-band router features Broadcom’s 5th generation Wi-Fi (5G WiFi) technology. It operates on both 2.4GHz and 5GHz bands, delivering data rates up to 1.75Gbps, which is three times faster than 802.11n speeds. Equipped with ASUS AiRadar technology, it amplifies transmissions for optimized signals, enhancing network coverage. The router supports ASUSWRT setup, Quality of Service (QoS) standards, multiple SSIDs, and includes two USB ports for file, DLNA, and printer server capabilities. It also features three detachable R-SMA type antennas for wider coverage and supports VPN Server functionality and IPv6.

2.製品オーバーview

The ASUS RT-AC66U router is designed to provide high-speed and reliable wireless connectivity for your home or office network. Below are key features and a visual representation of the device.

主な特徴:

• デュアルバンドAC1750 WiFi: Utilizes 5th generation 802.11ac chipset for concurrent 2.4GHz/5GHz operation, offering speeds up to 1.75Gbps.
• ASUS AiCloud Service: Enables access, streaming, sharing, and syncing of files on the go with unlimited storage expansion.
• ギガビットイーサネットポート: Provides fast and reliable wired internet performance.
• AiRadarテクノロジー: Optimizes wireless coverage through high-powered amplification and beam-forming with detachable antennas.
• ASUSWRT Dashboard UI: Offers a user-friendly interface for 3-step easy setup, signal monitoring, and network application control.
• Download Master: Facilitates wireless data storage and access to USB storage devices connected to the router.
• Multi-functional USB Ports: Two built-in USB ports support file sharing, printer sharing, and 3G sharing.
• VPNサーバー： Integrated VPN server functionality for secure remote access.
• IPv6 サポート: Ready for the next generation of internet protocol.

製品 Views:

図1: 前面 view ASUS RT-AC66Uルーターのasing its design and external antennas.

Figure 2: Top-front perspective of the ASUS RT-AC66U router, highlighting the ventilation and LED indicators.

図3：背面 view of the ASUS RT-AC66U router, showing the WAN, LAN, USB ports, and power input.

3. セットアップ

Follow these steps to set up your ASUS RT-AC66U router and establish an internet connection.

3.1ハードウェア接続

1. ルーターの位置: Place the router in a central location for optimal Wi-Fi coverage. Ensure antennas are oriented vertically for best signal.
2. モデムを接続します。 モデムの電源を切ります。バックアップバッテリーがある場合は取り外します。
3. WANポートに接続: Connect one end of an Ethernet cable to your modem's LAN port and the other end to the blue WAN port on the ASUS RT-AC66U router.
4. 接続電源： Plug the power adapter into the router's power input and then into a power outlet.
5. 電源オン: Turn on your modem, then turn on the ASUS RT-AC66U router. Wait for the LED indicators to stabilize.

3.2 Initial Configuration (ASUSWRT)

1. ルーターに接続: Connect your computer to the router either wirelessly (using the default Wi-Fi name and password found on the router's label) or via an Ethernet cable to one of the yellow LAN ports.
2. 設定ページにアクセスします: 開く web ブラウザで入力 ルーター.asus.com or 192.168.1.1 アドレスバーに。
3. 画面上の指示に従ってください: The ASUSWRT dashboard UI will guide you through a 3-step setup process to configure your internet connection, Wi-Fi network name (SSID), and password.
4. Confirm Internet Status: After completing the setup, check the "Network Map" section to ensure the Internet status shows "Connected".

4. ルーターの操作

Once your router is set up, you can manage its various functions through the ASUSWRT interface or the ASUS Router app.

4.1 ワイヤレスネットワーク管理

• デュアルバンド操作: The RT-AC66U operates on both 2.4GHz and 5GHz frequencies. You can configure separate SSIDs for each band or use Smart Connect to allow devices to automatically choose the best band.
• ゲストネットワーク： Create up to three separate guest networks for visitors, providing internet access while isolating your main network for security.
• AiRadar Beamforming: This technology automatically detects the location of Wi-Fi devices and directs stronger signals towards them, improving range and stability.

4.2 USB Applications

The two USB 2.0 ports on the router offer versatile functionalities:

• AiDisk (File 共有): Connect a USB storage device to create a personal cloud server for file sharing and streaming.
• プリンターサーバー: Connect a USB printer to share it across your network.
• 3G/4G Sharing: Connect a compatible 3G/4G USB dongle to use as a primary or backup internet connection.

4.3 Network Security and Control

• AiProtection: Provides network security features, including malicious site blocking, vulnerability protection, and infected device prevention and blocking.
• 適応型QoS: Prioritizes network traffic for specific applications (e.g., gaming, streaming) to ensure smooth performance.
• ペアレンタルコントロール: Manage and schedule internet access for connected devices.
• VPNサーバー： Set up a Virtual Private Network (VPN) server to securely access your home network from anywhere.

5. メンテナンス

定期的なメンテナンスにより、ルーターが効率的かつ安全に動作することが保証されます。

5.1 ファームウェアアップデート

Keeping your router's firmware up to date is crucial for performance, security, and new features. You can update the firmware via the ASUSWRT interface.

1. Access ASUSWRT: ルーターにログイン web interface (router.asus.com).
2. Navigate to Firmware Upgrade: へ移動 管理 > ファームウェアのアップグレード.
3. アップデートの確認: Click "Check" to see if a new firmware version is available.
4. 更新を実行: If an update is available, follow the on-screen instructions to download and install it. The router will reboot automatically after the update.

5.2 定期的な再起動

ルーターを定期的に（たとえば、月に 1 回）再起動すると、メモリがクリアされ、小さなネットワークの問題が解決され、全体的なパフォーマンスが向上します。

• ソフトリブート: Log in to ASUSWRT and click the "Reboot" button at the top of the page.
• Hard Reboot: Unplug the power adapter from the router, wait 10-15 seconds, then plug it back in.

6。 トラブルシューティング

If you encounter issues with your ASUS RT-AC66U router, refer to the following common troubleshooting steps.

6.1 インターネット接続なし

1. LEDインジケータを確認します: Ensure the Power, Wi-Fi, and Internet LEDs are solid blue. If the Internet LED is off or orange, there might be an issue with your modem or ISP connection.
2. ケーブル接続を確認します: Ensure all Ethernet cables (WAN, LAN) are securely connected to the correct ports on the router and modem.
3. デバイスの電源サイクル: Power off your modem and router. Wait 30 seconds, then power on the modem first. Once the modem is fully online (all its indicator lights are stable), power on the router.
4. WAN設定を確認します: Log in to ASUSWRT and navigate to WAN > Internet Connection. Verify that your WAN connection type (e.g., PPPoE, Static IP, Automatic IP) and account settings are correct as provided by your Internet Service Provider (ISP).
5. ISP連絡先: If the issue persists, contact your ISP to confirm your account status and connection details.

6.2 Poor Wi-Fi Signal or Coverage

1. ルーターの配置: Move the router to a central location, away from obstructions (thick walls, metal objects) and interference sources (microwaves, cordless phones).
2. アンテナの向き: Adjust the router's external antennas for optimal signal reception.
3. 干渉： Change the Wi-Fi channel in ASUSWRT (Wireless > General) to avoid interference from neighboring networks. Use a Wi-Fi analyzer app to find less congested channels.
4. ファームウェアアップデート： Ensure your router's firmware is up to date (refer to Section 5.1).

6.3 Restoring to Factory Default Settings

If you experience persistent issues or forget your router's login credentials, you can restore it to its factory default settings. This will erase all custom configurations.

• Via ASUSWRT: へ移動 Administration > Restore/Save/Upload Setting and click "Restore".
• ハードウェアリセット： With the router powered on, press and hold the "Reset" button (usually a small pinhole button on the back) for about 5-10 seconds until the Power LED starts blinking. Release the button and wait for the router to reboot.

7. 仕様

8. 保証とサポート

For warranty information, technical support, or further assistance, please visit the official ASUS support webサイトにアクセスするか、カスタマーサービスにお問い合わせください。

• ASUS サポート Webサイト： www.asus.com/サポート/
• 製品ページ： AmazonのASUSストアをご覧ください