Product Overview
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your HUAWEI 5G CPE 5 (H155-381) router.
Package Contents
- HUAWEI 5G CPE 5 (H155-381) Router
- Power Adapter
- Ethernet Cable
- Quick Start Guide
Device Layout



Setup Guide
Step 1: Insert SIM Card
Locate the Nano SIM card slot at the bottom of the router. Insert your 5G/4G Nano SIM card into the slot with the gold contacts facing down and the notched corner aligned correctly. Ensure it clicks into place.
Step 2: Connect Power
Connect the power adapter to the router's power input port and then plug the adapter into a power outlet. The router will automatically power on.
Step 3: Connect to Network
You can connect to the router via Wi-Fi or Ethernet cable.
Wi-Fi Connection
- On your device (laptop, smartphone, tablet), search for available Wi-Fi networks.
- Select the Wi-Fi network name (SSID) printed on the label at the bottom of the router.
- Enter the Wi-Fi password (Key) also found on the router's label.
Ethernet Connection
Connect one end of the Ethernet cable to a LAN port on the router (LAN1 or LAN2/WAN) and the other end to the Ethernet port on your computer or other network device.
Step 4: Initial Configuration
Open a web browser and enter the default IP address (usually 192.168.8.1) into the address bar. Follow the on-screen instructions to complete the initial setup, including changing the default Wi-Fi name and password for security.
Operating Instructions
Indicator Lights
The router features several indicator lights on the front panel:
- 5G Indicator: Indicates 5G network status.
- 4G Indicator: Indicates 4G network status.
- STATUS Indicator: Shows the overall operational status of the router.
WPS Function
The WPS (Wi-Fi Protected Setup) button allows for easy and secure connection of WPS-compatible devices without entering the Wi-Fi password.
- Press the WPS button on the router.
- Within two minutes, activate WPS on your client device.
- The devices will automatically connect.

AI Life App Management
For advanced management and diagnosis, download the HUAWEI AI Life app from your device's app store.

The app allows you to:
- Monitor network status
- Manage connected devices
- Configure Wi-Fi settings
- Perform system diagnostics
Maintenance
Cleaning
Regularly clean the router with a soft, dry cloth. Do not use liquid cleaners or aerosols.
Firmware Updates
Keep your router's firmware updated to ensure optimal performance and security. Firmware updates can usually be performed through the router's web interface or the AI Life app.
Resetting the Router
If you encounter persistent issues, you may need to reset the router to its factory default settings.
- With the router powered on, locate the RESET button at the bottom of the device (often recessed).
- Use a pin or a straightened paperclip to press and hold the RESET button for approximately 5-10 seconds until the indicator lights change.
- Release the button. The router will restart with factory settings.
Troubleshooting
No Internet Connection
- Check SIM Card: Ensure the SIM card is correctly inserted and active.
- Check Signal Strength: Verify the 5G/4G indicator lights. If no signal, try repositioning the router.
- Restart Router: Power off the router, wait 30 seconds, then power it back on.
- Check Cables: Ensure all Ethernet cables are securely connected.
- Contact ISP: If issues persist, contact your Internet Service Provider to confirm network availability.
Slow Connection Speed
- Router Placement: Place the router in a central location, away from obstructions and interference sources (e.g., microwaves, cordless phones).
- Network Congestion: Too many devices connected or high network traffic can slow down speeds.
- Firmware Update: Ensure the router's firmware is up to date.
- Signal Interference: Check for other Wi-Fi networks or devices operating on the same frequency.
Wi-Fi Disconnections
- Signal Strength: Move closer to the router or reduce obstacles.
- Channel Interference: In the router's web interface or AI Life app, try changing the Wi-Fi channel.
- Firmware Update: Update router firmware.
Technical Specifications
| Feature | Description |
|---|---|
| Model Name | H155-381 |
| Brand | HUAWEI |
| Network Type | 5G (NSA/SA), 4G compatible |
| Wi-Fi Standard | Wi-Fi 6 (802.11ax) |
| Frequency Bands | Dual-Band (2.4 GHz, 5 GHz) |
| Data Transfer Rate | Up to 3000 Mbps (Wi-Fi), Theoretical Peak Download 3.6 Gbps, Upload 500 Mbps (5G) |
| Ports | LAN1, LAN2/WAN, Power Input |
| SIM Card Type | Nano SIM |
| Dimensions (L x W x H) | 9.9 x 10.5 x 21.5 cm |
| Weight | 915 g |
| Special Features | Indoor 5G, Visualized management & diagnosis, Pair with one click, Wi-Fi mesh +, AI life app |


Warranty and Support
Warranty Information
For detailed warranty information, please refer to the warranty card included with your product or visit the official HUAWEI support website.
Customer Support
If you require further assistance or encounter issues not covered in this manual, please contact HUAWEI customer support.
- Online Support: Visit the HUAWEI official support website for FAQs, downloads, and online chat.
- AI Life App: Use the AI Life app for diagnostics and direct support options.







