Use and Care Manual
Table Of Contents
- Contents
- 1. Introduction and Hardware Overview
- 2. Get Started
- 3. Manage the Modem LAN Settings
- 4. Manage the Mobile Broadband Connection
- 5. Secure Your Network
- Change the Modem Password
- Manage Port Forwarding for Incoming Traffic
- Manage Port Filtering for Outgoing Traffic
- Block Specific Services and Applications From Accessing the Internet and Allow All Other Services and Applications
- Allow Specific Services and Applications to Access the Internet and Block All Other Services and Applications
- View Services and Applications on the Blacklist and Remove a Service or Application From the List
- View Services and Applications on the Whitelist and Remove a Service or Application From the List
- Disable Port Filtering
- Manage SIM Card Security
- 6. Manage the Modem and Monitor Usage and the Network
- Upgrade the Firmware of the Modem
- Back Up and Restore the Modem Settings
- Return the Modem to Its Factory Default Settings
- View Monthly Data and Session Data Usage
- Set a Plan Limit for the Data Counter
- Change the Billing Cycle Counter or Reset the Data Counter
- View Service Provider, Type of Service, and Signal Strength
- View Account Details and Other Details About Your Modem
- View Information About the Mobile Broadband Connection
- Set Up SMS Alert Messages
- Set the Data Limit for SMS Alert Messages
- View Alerts
- Turn Off the LEDs
- 7. Manage SMS Messages
- 8. Frequently Asked Questions
- What do I do when I can’t connect a device to the modem?
- What do I do when I can’t access the Internet?
- What do I do when the No Signal icon displays?
- Why does the Signal Strength LED show only a few bars?
- Why is the download or upload speed slow?
- Can I connect multiple LAN devices to the modem?
- How do I access the modem’s web pages?
- What do I do if I forget my admin login password?
- How do I disconnect from the mobile broadband network?
- How do I find my computer’s IP address?
- How do I find a device’s MAC address?
- How do I find my mobile phone number?
- Where can I find more information?
- 9. Alerts and Troubleshooting
- A. Default Settings and Specifications
- B. Wall-Mount the Modem
By default, the Router radio button is selected.
7. Click the Submit button.
Your settings are saved and the modem restarts. Any devices that are connected to the modem are
disconnected when the modem restarts.
Enabling Bridge mode automatically disables the modem’s DHCP server.You can connect only a single
device to the modem.
Enabling Router mode automatically enables the modem’s DHCP server, which assigns a LAN IP
address to each connected device.
Change the DHCP Server Settings
You can change the DHCP server settings only when the modem functions in Router
mode (see Manage Router Mode and Bridge Mode on page 23).
Note
The modem is preconfigured to function as a DHCP server when Router mode is enabled.The modem’s
default DHCP IP address range is 192.168.5.20–192.168.5.99.
Although you can change the DHCP address range of the modem, this is rarely necessary. However, if you
establish a VPN connection to a server that assigns IP addresses in the same range as the one that is used
by the modem, you must change the DHCP range of the modem to prevent network problems.
The modem’s DHCP server assigns IP, DNS server, and default gateway addresses to all computers
connected to the LAN.The assigned default gateway address is the LAN address of the modem.The modem
assigns IP addresses to the attached computers from a predefined pool of addresses. (You can change the
pool of addresses.) Each pool address is tested before it is assigned to avoid duplicate addresses on the
LAN. For most applications, the default DHCP and TCP/IP settings of the modem work well.
The modem delivers the following parameters to any LAN device that requests DHCP:
• An IP address from the range that you defined
• Subnet mask
• Gateway IP address (the modem’s LAN IP address)
• DNS server IP address (the modem’s LAN IP address)
To change the DHCP server settings when the modem functions in Router mode:
1. Launch a web browser from a device that is connected to the modem.
The device can be a computer that is directly connected to the modem or a client from a router that is
connected to the modem.
2. In the address field of your browser, enter http://192.168.5.1.
The limited Dashboard page displays.
3. If you did not select the Remember me check box when you logged in previously, enter the modem
password in the Sign In field.
See the modem label for the default password.
Manage the Modem LAN Settings
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LTE Modem LB1120 and LB1121