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
• Turn off and on both the modem and the device that is connected to the modem.
• If your modem’s IP address was changed and you do not know the current IP address, clear the modem’s
configuration to factory defaults.This sets the modem’s IP address to 192.168.5.1. For more information,
see Return the Modem to Its Factory Default Settings on page 59.
Troubleshoot the Mobile Broadband Internet Connection
If your modem cannot access the Internet, check the mobile broadband connection:
• Make sure that a micro SIM card is installed in the modem. Micro SIM cards from other devices do not
function in the modem and this SIM card does not function in other devices. For information about
inserting the SIM cards, see Install the Micro SIM Card on page 8.
• If SIM security is enabled, make sure that you entered the PIN correctly to unlock the SIM card (see
Enter the SIM PIN to Enable the Modem to Connect to the Internet on page 50). A locked SIM card
prevents the modem from connecting to the mobile broadband network.
• Make sure that your mobile broadband account is active.
• Check with your Internet service provider to ensure that coverage exists in the area. If no mobile
broadband coverage exists, all Signal Strength bars are off.
• If only one or two Signal Quality LED bars light, move the modem closer to a window for better access
to the mobile broadband signal.
• Check to see if your mobile service provider is experiencing network problems. It might not be that the
modem cannot connect to the Internet, but rather that your service provider cannot provide an Internet
connection.
• You might need to add a custom APN profile (see Manage APN Profiles for Mobile Broadband
Connections on page 31). Contact your mobile broadband service provider.
For more information about Internet connection problems, see TCP/IP Network Not Responding on page
88.
Obtain an Internet IP Address From Your Service Provider
If your modem cannot access the Internet but one or more Signal Strength LED bars light green, see if the
modem can obtain an Internet IP address from the mobile broadband service provider.
Unless the modem was assigned a static IP address, the modem requests an IP address from the mobile
broadband service provider.You can determine whether the request was successful (see View Account
Details and Other Details About Your Modem on page 65).
If the IP address is shown as 0.0.0.0, the modem did not obtain an IP address from the mobile broadband
service provider. If this situation occurs, do the following:
• Make sure that an APN profile exists for your mobile broadband service provider (see Manage APN
Profiles for Mobile Broadband Connections on page 31).
• Turn off the modem and then turn it back on.
If you still cannot obtain an Internet IP address, contact your mobile broadband service provider.
Alerts and Troubleshooting
87
LTE Modem LB1120 and LB1121