1. Introduction
The Yeacomm S11 is a versatile 4G LTE CPE (Customer Premises Equipment) router designed to provide high-speed internet access for home and small office (SOHO) environments. It supports 2G, 3G, and 4G networks, offering both wired and wireless connectivity options. With features like VoLTE, RJ11 for voice calls, RJ45 for LAN connections, and a SIM card slot, it serves as a comprehensive solution for mobile broadband sharing and communication.

2. Package Contents
Please check the package for the following items:
- Yeacomm S11 4G LTE CPE Router Unit
- 2 x 4G External Cellular Antennas
- Network Cable (RJ45)
- Power Adapter
Note: A Micro SIM Card is required for cellular connectivity and is not included in the package.

3. Device Overview
3.1 Front Panel Indicators
- Power Indicator: Indicates the power status of the device.
- Wi-Fi Indicator: Shows the status of the Wi-Fi network.
- VoLTE Indicator: Indicates VoLTE service status.
- Signal Strength Indicators: Displays the strength of the 4G/3G cellular signal.
3.2 Rear Panel Ports and Buttons

- Micro SIM Card Slot: Insert your Micro SIM card here.
- Reset Button: Used to restore the router to factory default settings.
- WPS Button: For quick and secure Wi-Fi connection setup.
- USB Port: For potential future use or specific functionalities.
- TEL Port (RJ11): Connect a landline phone for VoLTE calls.
- LAN Port (RJ45): Connect to a computer or other network devices via Ethernet cable.
- Power Port: Connect the provided power adapter.
- External Antenna Connectors: Attach the two 4G external cellular antennas.
4. Setup Guide
Follow these steps to set up your Yeacomm S11 router:
- Insert Micro SIM Card: Open the SIM card slot cover on the rear panel. Carefully insert your Micro SIM card into the slot until it clicks into place. Ensure the card is oriented correctly.
- Attach External Antennas: Screw the two external cellular antennas onto their respective connectors on the rear of the router. These antennas enhance 4G/3G signal reception. The Wi-Fi antennas are built-in.
- Connect Power Adapter: Plug one end of the power adapter into the router's power port and the other end into a standard electrical outlet. The power indicator on the front panel should light up.
- Initial Connection:
- Via Wi-Fi: On your computer or mobile device, search for available Wi-Fi networks. Select the network name (SSID) printed on the sticker at the bottom of your router and enter the default Wi-Fi password.
- Via Ethernet: Connect one end of the provided network cable to the router's LAN port and the other end to your computer's Ethernet port.
- Access Web Management Interface: Open a web browser (e.g., Chrome, Firefox) and enter the default IP address
192.168.0.1in the address bar. You will be prompted to enter the username and password (default:adminfor both).
5. Operating Instructions
5.1 Network Connection and Configuration
Once logged into the web management interface, you can configure your router settings:
- APN Settings: Navigate to the 'Connection Settings' or 'Network Settings' section. Most SIM cards will automatically configure the APN (Access Point Name). If not, you may need to manually enter the APN details provided by your mobile network operator. Ensure PDP Type is set to IPv4.
- Wi-Fi Settings: Change the default Wi-Fi SSID and password for security. You can find these options under 'Wireless' or 'Wi-Fi Settings'.
- Firewall & QoS: The router includes firewall and Quality of Service (QoS) functions to manage network security and prioritize traffic. These can be configured in the respective sections of the web interface.
- VoLTE: If your SIM card and network support VoLTE, you can connect a standard telephone to the RJ11 TEL port to make and receive voice calls over the 4G network.
- WPS Function: Press the WPS button on the rear panel of the router and then activate WPS on your Wi-Fi device (e.g., smartphone, laptop) to establish a quick, secure connection without entering the password.
- SMS Functionality: The router supports reading, writing, and sending SMS messages directly from the web management interface.


5.2 Network Application

The Yeacomm S11 router enables multiple devices to connect to the internet simultaneously, making it ideal for home and small office use. It supports various applications including:
- General internet browsing and streaming
- Online gaming
- VoIP calls via the TEL port
- Connecting smart home devices
- Providing network access for multiple computers and mobile devices
6. Specifications
| Feature | Description |
|---|---|
| Brand Name | Yeacomm |
| Model | S11 |
| Type | Wireless, With Modem Function |
| Application | SOHO (Small Office/Home Office) |
| Network Support | 2G/3G/4G |
| LTE Category | CAT4 |
| LTE-FDD Speed | Up to 150Mbps (Download), 50Mbps (Upload) |
| DC-HSPA+ Speed | Up to 43.2Mbps (Download) |
| HSPA+ Speed | Up to 21.6Mbps (Download) |
| HSDPA Speed | Up to 14.4Mbps (Download) |
| HSUPA Speed | Up to 5.76Mbps (Upload) |
| Wi-Fi Transmission Standard | 802.11b, 802.11g, 802.11n |
| Wi-Fi Supported Frequency | 2.4G (Single-Band) |
| 2.4G Wi-Fi Transmission Rate | 300 Mbps |
| Max. LAN Data Rate | 300Mbps |
| Wired Transfer Rate | 10/100Mbps |
| LAN Ports | 1 x RJ45 (4 LAN ports mentioned in product properties, but diagram shows 1 LAN port. Please refer to physical device.) |
| Number of USB Interfaces | 1 x USB 2.0 |
| Antenna Type | 2 x Retractable External 4G Cellular Antennas, Built-in Wi-Fi Antennas |
| Supports WPS | Yes |
| Function | Firewall, QoS, DHCP, NAT, IPv6/IPv4 dual stack, TR069, L2TP VPN, Port Forwarding, SMS |
| Support Mesh | Not Supported |
| Dimensions (approx.) | 4.6in (W) x 4.7in (H) x 1.6in (D) (excluding antennas) |
| Antenna Length (approx.) | 7.7in |
| Certifications | CE, FCC, CE ROHS |
6.1 Frequency Bands

The Yeacomm S11 router is available in different versions (S11-1, S11-2, S11-3) with varying frequency band support. Please refer to the table above to ensure compatibility with your local network operator.
- S11-1 (Most of Asia): LTE FDD B1/B3/B5/B8 (2100/1800/850/900MHz), 3G WCDMA/HSPA+/UMTS: 2100MHz, GSM 850/900/1800/1900MHz.
- S11-2 (Most of Asia, some of Africa Countries): LTE FDD B1/B3/B5/B8 (2100/1800/850/900MHz), LTE TDD B38/B39/B40/B41 (2600/1900/2300/2500MHz), 3G WCDMA/HSPA+/UMTS: 2100MHz, GSM 850/900/1800/1900MHz.
- S11-3 (Global Version - All of Asia, Europe, North America, Africa, Middle East, Oceania Countries): LTE FDD B1/B2/B3/B4/B5/B7/B8/B20 (2100/1900/1800/1700/850/2600/900/800MHz), LTE TDD B38/B39/B40/B41 (2600/1900/2300/2500MHz), 3G WCDMA/HSPA+/UMTS: 900/2100MHz, GSM 850/900/1800/1900MHz.
7. Troubleshooting
If you encounter issues with your Yeacomm S11 router, try the following solutions:
- No Internet Connection:
- Ensure the SIM card is correctly inserted and active.
- Check the signal strength indicators on the front panel. If the signal is weak, try repositioning the router or adjusting the external antennas.
- Verify APN settings in the web management interface. These must match your mobile network operator's settings.
- Confirm your SIM card has an active data plan.
- Cannot Access Web Management Interface:
- Ensure your device is connected to the router via Wi-Fi or Ethernet.
- Verify you are entering the correct IP address (
192.168.0.1) and login credentials (default:admin/admin). - Try clearing your browser's cache or using a different browser.
- Slow Internet Speed:
- Check the signal strength. Weak signal can lead to slow speeds.
- Reduce the number of connected devices or active downloads.
- Ensure your data plan is not throttled or exceeded.
- Consider network congestion during peak hours.
- Router Unresponsive:
- Try restarting the router by unplugging and re-plugging the power adapter.
- If issues persist, use the Reset button on the rear panel to restore factory settings. Note that this will erase all custom configurations.
8. User Tips
- Check Band Compatibility: Before purchasing or using, verify that the specific version of your S11 router (S11-1, S11-2, or S11-3) supports the frequency bands used by your local mobile network operator, especially for voice services like VoLTE.
- Included Accessories: The package includes all necessary accessories for basic setup and operation, such as external antennas, a network cable, and a power adapter.
- Certifications: The Yeacomm S11 router holds several certifications, including FCC, CE, and CE ROHS, indicating compliance with relevant standards.
9. Maintenance
To ensure optimal performance and longevity of your Yeacomm S11 router:
- Keep Clean: Regularly wipe the device with a soft, dry cloth. Avoid using liquid cleaners or aerosols.
- Ventilation: Ensure the router is placed in a well-ventilated area to prevent overheating. Do not cover ventilation openings.
- Environment: Avoid exposing the router to extreme temperatures, direct sunlight, high humidity, or dusty environments.
- Power Off When Not in Use: If you plan not to use the router for an extended period, it is advisable to power it off and unplug it from the electrical outlet.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase for warranty claims.





