1. ບົດແນະນຳ
This manual provides detailed instructions for the installation, configuration, and operation of your Cudy LT450 AC1200 4G LTE Router. Please read this manual thoroughly before using the device to ensure proper functionality and optimal performance. The Cudy LT450 is designed to provide high-speed internet access via 4G LTE and distribute it through dual-band Wi-Fi and Ethernet connections.

ຮູບພາບ 1.1: ດ້ານຫນ້າ view of the Cudy LT450 AC1200 4G LTE Router with four external antennas.
2. ເນື້ອໃນຊຸດ
ກວດສອບວ່າລາຍການທັງຫມົດແມ່ນມີຢູ່ໃນຊຸດຂອງທ່ານ:
- Cudy LT450 AC1200 4G LTE Router
- Power Adapter
- ສາຍອີເທີເນັດ
- ຄູ່ມືການຕິດຕັ້ງດ່ວນ

Image 2.1: Retail packaging of the Cudy LT450 router, showing the device and key features.
3. ຮາດແວຫຼາຍກວ່າview
Familiarize yourself with the ports and indicators on your Cudy LT450 router.
3.1 ຕົວຊີ້ວັດດ້ານໜ້າ
- ໄຟ LED: ສະແດງສະຖານະພະລັງງານ.
- ອິນເຕີເນັດ LED: ສະແດງສະຖານະການເຊື່ອມຕໍ່ອິນເຕີເນັດ.
- Wi-Fi LED: ຊີ້ບອກການເຄື່ອນໄຫວ Wi-Fi.
- 4G LTE LED: Indicates 4G LTE signal strength and connection status.
3.2 ຜອດ ແລະ ປຸ່ມດ້ານຫລັງ
- ຊ່ອງໃສ່ຊິມກາດ: ໃສ່ແຜ່ນ Nano SIM ຂອງທ່ານທີ່ນີ້.
- ພອດ LAN (x3): ເຊື່ອມຕໍ່ອຸປະກອນແບບມີສາຍ ເຊັ່ນ: ຄອມພິວເຕີ ຫຼື ເຄື່ອງຫຼິ້ນເກມ.
- ພອດ LAN/WAN (x1): Can function as an additional LAN port or as a WAN port for an existing internet connection (e.g., fiber modem).
- ປຸ່ມຣີເຊັດ: ກົດຄ້າງໄວ້ 5-10 ວິນາທີເພື່ອຟື້ນຟູການຕັ້ງຄ່າເລີ່ມຕົ້ນຈາກໂຮງງານ.
- ປຸ່ມ WPS/Wi-Fi: Press to enable WPS for easy Wi-Fi connection or press and hold to toggle Wi-Fi on/off.
- ພອດພະລັງງານ: ເຊື່ອມຕໍ່ອະແດບເຕີໄຟທີ່ສະໜອງໃຫ້.
- ປຸ່ມປິດ / ປິດພະລັງງານ: ເພື່ອເປີດ ຫຼື ປິດອຸປະກອນ.

Image 3.1: Rear panel of the Cudy LT450, showing LAN, LAN/WAN ports, SIM slot, and power connections.
4. ຕັ້ງຄ່າ
4.1 ການຕິດຕັ້ງ SIM card
- ໃຫ້ແນ່ໃຈວ່າ router ປິດ.
- Locate the SIM card slot on the rear panel.
- Insert a Nano SIM card into the slot until it clicks into place. Ensure the SIM card is oriented correctly according to the diagram near the slot.
- If the SIM card requires a PIN, you will need to enter it during the initial web ການຕັ້ງຄ່າການໂຕ້ຕອບ.
4.2 ພະລັງງານໃນ
- Connect the provided power adapter to the router's power port and then to a power outlet.
- ກົດປຸ່ມເປີດ / ປິດ.
- Wait for the Power LED to turn solid, and the 4G LTE LED to indicate a stable connection (usually solid blue or green). This may take a few minutes.
4.3 ການຕັ້ງຄ່າເບື້ອງຕົ້ນ (Web ອິນເຕີເຟດ)
- Connect your computer or mobile device to the router's Wi-Fi network (SSID and password are typically printed on a label on the bottom of the router) or via an Ethernet cable to one of the LAN ports.
- ເປີດ ກ web browser ແລະໃສ່ທີ່ຢູ່ IP ເລີ່ມຕົ້ນ (ເຊັ່ນ: http://192.168.10.1) ເຂົ້າໄປໃນແຖບທີ່ຢູ່.
- Enter the default login credentials (usually admin/admin or as specified on the router label).
- Follow the on-screen Quick Setup Wizard to configure your internet connection, Wi-Fi settings, and SIM PIN (if applicable).
- It is recommended to change the default login password for security.

Image 4.1: Connection diagram illustrating how to insert a SIM card and connect devices via LAN and Wi-Fi.
5. ຄໍາແນະນໍາການດໍາເນີນງານ
5.1 ອຸປະກອນເຊື່ອມຕໍ່
The Cudy LT450 supports both wireless and wired connections.
5.1.1 ການເຊື່ອມຕໍ່ Wi-Fi
- On your device, search for available Wi-Fi networks.
- Select the SSID (network name) of your Cudy LT450 router.
- Enter the Wi-Fi password (found on the router label or configured during setup).
- The router supports dual-band Wi-Fi: 2.4 GHz (up to 300 Mbps) and 5 GHz (up to 867 Mbps).
5.1.2 ການເຊື່ອມຕໍ່ Ethernet
- Connect one end of an Ethernet cable to a LAN port on the router.
- Connect the other end to the Ethernet port of your wired device (e.g., PC, game console).

Image 5.1: Diagram illustrating 4G LTE download/upload speeds and dual-band Wi-Fi speeds (5GHz and 2.4GHz).
5.2 ການຕັ້ງຄ່າ VPN
The Cudy LT450 includes built-in VPN client support for PPTP, L2TP, OpenVPN, and WireGuard. This allows the router to establish a secure connection to a VPN server, encrypting all traffic passing through it.
- ເຂົ້າເຖິງ router ຂອງ web ການໂຕ້ຕອບ.
- ທ່ອງໄປຫາພາກການຕັ້ງຄ່າ VPN.
- Select your desired VPN protocol (PPTP, L2TP, OpenVPN, or WireGuard).
- Enter the VPN server details, username, and password provided by your VPN service provider.
- Save the settings and enable the VPN connection.

Image 5.2: Visual representation of VPN functionality, emphasizing secure network access.
5.3 DDNS Setup
Dynamic DNS (DDNS) allows you to access your network resources (e.g., security cameras, network storage) remotely using a domain name, even if your public IP address changes. The LT450 supports over 20 DDNS providers.
- ເຂົ້າເຖິງ router ຂອງ web ການໂຕ້ຕອບ.
- Locate the DDNS settings.
- Select your DDNS service provider from the list.
- Enter your DDNS account credentials and desired hostname.
- Save the settings to activate DDNS.

Image 5.3: Graphic illustrating DDNS functionality for remote network access.
5.4 ການຕັ້ງຄ່າຂັ້ນສູງ
ໄດ້ web interface provides various advanced settings for network management, including:
- ການຕັ້ງຄ່າເຄືອຂ່າຍ: LAN IP, DHCP server, WAN settings (if using LAN/WAN port).
- ການຕັ້ງຄ່າໄຮ້ສາຍ: Wi-Fi name (SSID), password, security type, channel, bandwidth.
- Firewall: Port forwarding, DMZ, parental controls.
- ເຄື່ອງມືລະບົບ: Firmware upgrade, backup/restore configuration, reboot, password change.
- DNS Encryption: Support for Cloudflare, NextDNS, or Google DNS to enhance privacy and security.

Image 5.4: User interacting with the router's web management interface, highlighting ease of use.
6. ບໍາລຸງຮັກສາ
6.1 ການອັບເດດເຟີມແວ
Regularly updating the router's firmware ensures optimal performance, security, and access to new features.
- ຢ້ຽມຢາມ Cudy ຢ່າງເປັນທາງການ webເວັບໄຊ (www.cudy.com) and navigate to the support section for the LT450 model.
- ດາວໂຫລດເຟີມແວຫຼ້າສຸດ file ກັບຄອມພິວເຕີຂອງທ່ານ.
- ເຂົ້າເຖິງ router ຂອງ web ການໂຕ້ຕອບ.
- ໄປທີ່ ເຄື່ອງມືລະບົບ > ອັບເກຣດເຟີມແວ.
- Browse for the downloaded firmware file and initiate the upgrade process.
- Do not power off the router during the firmware upgrade.
6.2 ຣີເຊັດເປັນຄ່າໂຮງງານ
A factory reset will revert all settings to their default values. This can be useful for troubleshooting or when reconfiguring the router.
- ວິທີທີ່ 1 (ປຸ່ມຮາດແວ): With the router powered on, press and hold the Reset button on the rear panel for approximately 5-10 seconds until the LEDs flash. Release the button and wait for the router to restart.
- ວິທີທີ່ 2 (Web ການໂຕ້ຕອບ): ເຂົ້າເຖິງ router ຂອງ web ການໂຕ້ຕອບ, ໄປຫາ ເຄື່ອງມືລະບົບ > ສຳຮອງຂໍ້ມູນ ແລະ ກູ້ຄືນ, and select the option to restore factory settings.
7. ການແກ້ໄຂບັນຫາ
7.1 ບໍ່ມີການເຊື່ອມຕໍ່ອິນເຕີເນັດ
- Check if the SIM card is correctly inserted and activated with your mobile operator.
- Verify the 4G LTE LED status. If it's off or red, there might be a signal issue or SIM card problem.
- Ensure the SIM PIN is entered correctly in the web ການໂຕ້ຕອບ.
- Check the APN settings in the web interface. These are usually auto-detected but may need manual configuration for some operators.
- ຣີສະຕາດເຣົາເຕີ ແລະ ອຸປະກອນທີ່ເຊື່ອມຕໍ່ຂອງທ່ານ.
7.2 ບັນຫາການເຊື່ອມຕໍ່ Wi-Fi
- Ensure the Wi-Fi LED is on. If not, press the WPS/Wi-Fi button or enable Wi-Fi in the web ການໂຕ້ຕອບ.
- Verify you are using the correct Wi-Fi SSID and password.
- ຍ້າຍເຂົ້າໃກ້ເຣົາເຕີ້ຫຼາຍຂຶ້ນເພື່ອກວດສອບບັນຫາຄວາມແຮງຂອງສັນຍານ.
- ລອງປ່ຽນຊ່ອງ Wi-Fi ໃນ web interface to avoid interference.
7.3 ຄວາມໄວອິນເຕີເນັດຊ້າ
- Check your 4G LTE signal strength. A weak signal will result in lower speeds. Consider repositioning the router.
- ໃຫ້ແນ່ໃຈວ່າບໍ່ມີອຸປະກອນອື່ນໃດໃຊ້ແບນວິດຫຼາຍເກີນໄປ.
- Verify your mobile data plan limits and current usage.
- If using Wi-Fi, ensure your device is connected to the 5 GHz band for higher speeds, if supported.
8. ຂໍ້ມູນຈໍາເພາະ
| ຕົວແບບ | LT450 |
| ຍີ່ຫໍ້ | ກູດີ |
| ໝວດໝູ່ 4G LTE | ແມວ4 |
| ຄວາມໄວ 4G LTE | ສູງສຸດ 150 Mbps (ດາວໂຫລດ), 50 Mbps (ອັບໂຫຼດ) |
| ມາດຕະຖານ Wi-Fi | 802.11ac (AC1200) |
| ຄວາມໄວ Wi-Fi | 2.4 GHz: 300 Mbps, 5 GHz: 867 Mbps |
| ເສົາອາກາດ | 4 x 5dBi High-Gain Antennas |
| ພອດອີເທີເນັດ | 3 x 10/100 Mbps LAN, 1 x 10/100 Mbps LAN/WAN |
| ຊ່ອງໃສ່ຊິມກາດ | 1 x Nano SIM |
| ລູກຄ້າ VPN | PPTP, L2TP, OpenVPN, WireGuard |
| DDNS Support | 20+ providers |
| DNS Encryption | Cloudflare, NextDNS, Google |
| ອຸປະກອນທີ່ເຂົ້າກັນໄດ້ | Surveillance Camera, Personal Computer, Laptop, Smartphone, Tablet |
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
For warranty information and technical support, please refer to the warranty card included in your product package or visit the official Cudy webເວັບໄຊ.
- ທາງການ Webເວັບໄຊ: www.cudy.com
- ອີເມວສະຫນັບສະຫນູນ: ອ້າງເຖິງ webເວັບໄຊທ for ສໍາລັບລາຍລະອຽດການຕິດຕໍ່.