Introducció
The Mercusys MB112-4G N300 WI-FI 4G LTE Router is designed to provide reliable and high-speed internet access using 4G LTE mobile networks. This device offers a single-band 2.4 GHz Wi-Fi 4 (802.11n) connection with a maximum WLAN data transfer rate of 300 Mbit/s. It features Fast Ethernet LAN ports (10/100 Mbit/s) and supports 4G LTE-TDD & LTE-FDD standards across various frequency bands (700, 800, 850, 900, 1800, 2100, 2300, 2600 MHz). Advanced security algorithms like WPA-PSK and WPA2-PSK are supported to ensure a secure network environment.
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your router to ensure optimal performance.
Contingut del paquet
- Mercusys MB112-4G N300 WI-FI 4G LTE Router
- Adaptador d'alimentació
- Cable Ethernet
- Guia d'instal·lació ràpida
S'ha acabat el maquinariview

Figura 1: Frontal i lateral View. This image displays the router's front panel with status indicator LEDs and a side view revealing the Micro SIM card slot and reset button.

Figura 2: posterior View. This image shows the back of the router, highlighting the LAN/WAN Ethernet ports and the power input jack.
Indicadors LED
- Potència: Indica l'estat d'alimentació.
- Wi-Fi: Indica l'estat de la xarxa Wi-Fi.
- LAN/WAN: Indica l'activitat del port Ethernet.
- Internet: Indica l'estat de la connexió a Internet.
- 4G/LTE: Indicates 4G LTE signal strength and connection.
Ports i botons
- Ranura per a targeta Micro SIM: Insert your 4G LTE Micro SIM card here.
- LAN/WAN Ports: Ethernet ports for wired connections. One port can function as a WAN port for a wired internet source.
- Entrada d'alimentació: Connecteu l'adaptador de corrent proporcionat.
- Botó WPS/Restabliment: Press for WPS function; press and hold for factory reset.
Configuració
Pas 1: inseriu la targeta SIM
Ensure the router is powered off. Locate the Micro SIM card slot on the side of the router. Gently insert your 4G LTE Micro SIM card into the slot until it clicks into place. Ensure the card is oriented correctly as indicated by the diagram near the slot.

Figure 3: SIM Card Insertion. This image illustrates the correct method for inserting a Micro SIM card into the router's dedicated slot.
Pas 2: engegueu l'encaminador
Connect the provided power adapter to the router's power input port and then plug the adapter into a standard electrical outlet. The Power LED indicator should light up.
Pas 3: connecteu-vos a Internet
The router will automatically detect the 4G LTE network and establish an internet connection. The 4G/LTE LED and Internet LED should turn solid, indicating a successful connection. If you prefer a wired WAN connection, connect an Ethernet cable from your modem or wall jack to the LAN/WAN port on the router.

Figure 4: WAN Connection Backup. This image demonstrates how the router can utilize a wired Ethernet WAN connection as an alternative or backup internet source.
Step 4: Connect Devices to Wi-Fi
Locate the Wi-Fi network name (SSID) and password printed on the label at the bottom of the router. On your device (smartphone, laptop, etc.), select the router's Wi-Fi network from the available networks list and enter the password to connect.

Figura 5: Característiques clauview. This infographic summarizes the router's capabilities, including its 4G LTE speed, Wi-Fi performance, SIM card functionality, signal strength, device capacity, and WAN connection option.
Funcionament del router
Accedint al Web Interfície de gestió
Per configurar els paràmetres avançats, obriu un web browser on a device connected to the router's network. Type the default access address (usually 192.168.1.1 or mwlogin.net) into the address bar and press Enter. Log in using the default username and password (often admin/administrador or found on the router's label).
Configuració Wi-Fi
- Change SSID and Password: Navigate to the Wireless settings to customize your Wi-Fi network name and password for enhanced security.
- Xarxa de convidats: Create a separate network for guests to provide internet access without sharing your main network resources.
- Funció WPS: Press the WPS/Reset button on the router and then the WPS button on your client device to quickly connect without entering a password.
Modes de xarxa
The router primarily operates as a 4G LTE router. It can also function as a standard wireless router by connecting an Ethernet cable to the LAN/WAN port, allowing it to use a wired internet source instead of the 4G LTE connection.

Figure 6: Superfast 4G LTE Speed. This image visually represents the high-speed internet capabilities of the router, combining 4G LTE and Wi-Fi performance.
Manteniment
- Actualitzacions periòdiques del firmware: Check the Mercusys official weblloc web per obtenir les darreres actualitzacions de firmware per garantir un rendiment i una seguretat òptims.
- Neteja: Keep the router in a clean, dust-free environment. Avoid blocking ventilation holes.
- Col·locació adequada: Col·loca el router en un lloc central, allunyat d'obstacles i fonts d'interferències (per exemple, microones, telèfons sense fil) per maximitzar la cobertura Wi-Fi.
- Reiniciant: Periodically reboot the router by unplugging it from the power outlet for 10 seconds and then plugging it back in. This can resolve minor network issues.
Resolució de problemes
Sense accés a Internet
- Check if the 4G/LTE LED is solid. If not, ensure the SIM card is properly inserted and activated with your mobile carrier.
- Verify that the Internet LED is solid. If not, check your SIM card's data plan and signal strength.
- If using a wired WAN connection, ensure the Ethernet cable is securely connected and your modem is working correctly.
- Try rebooting the router and your connected devices.
Weak Wi-Fi Signal
- Relocate the router to a more central position in your home or office.
- Eviteu col·locar el router a prop d'objectes metàl·lics grans, parets de formigó o altres dispositius electrònics que puguin causar interferències.
- Assegureu-vos que els vostres dispositius estiguin dins de l'abast del Wi-Fi del router.
No es pot accedir Web Interfície de gestió
- Assegureu-vos que el dispositiu estigui connectat a la xarxa del router (ja sigui mitjançant Wi-Fi o Ethernet).
- Verify that you are using the correct access address (e.g., 192.168.1.1 or mwlogin.net).
- Esborra la memòria cau i les galetes del navegador o prova un altre navegador.
- If you forgot the login password, perform a factory reset by pressing and holding the WPS/Reset button for approximately 6-8 seconds until the LEDs flash. Note that a factory reset will erase all custom settings.
Especificacions
| Característica | Detall |
|---|---|
| Marca | MERCUSI |
| Número de model | MB112-4G |
| Tipus de connexió WAN | RJ-45 |
| Banda Wi-Fi | Single band (2.4 GHz) |
| Wi-Fi estàndard | Wi-Fi 4 (802.11n) |
| WLAN Data Transfer Rate (Max) | 300 Mbit/s |
| Ethernet LAN Interface Type | Fast Ethernet |
| Ethernet LAN Data Transfer Rates | 10, 100 Mbit/s |
| Cabling Technology | 10 / 100Base-T (X) |
| Mobile Network Generation | 4G |
| Estàndard 4G | LTE-TDD & LTE-FDD |
| Compatibilitat amb la banda 4G | 700, 800, 850, 900, 1800, 2100, 2300, 2600 MHz |
| Security Algorithms Supported | WPA-PSK, WPA2-PSK |
| Bateria recarregable | No |
| Garantia del fabricant | 3 any de garantia |
| Bateria(es) | 1 AAAA - inclosa |
| Descatalogat pel fabricant | No |
| Llengua | English (Original: French) |
| Fabricant | Mercusys |
Garantia i Suport
The Mercusys MB112-4G N300 WI-FI 4G LTE Router comes with a 3 anys de garantia contra defectes de fabricació. This warranty covers defects in materials and workmanship under normal use. For warranty claims or technical support, please contact Mercusys customer service or visit their official weblloc.
For the most up-to-date support information, FAQs, and driver downloads, please refer to the official Mercusys support page.





