Owner's Manual
Table Of Contents
- User Manual
- Contents
- 1. Introduction and Hardware Overview
- 2. Get Started
- 3. Manage the Mobile Broadband Connection
- 4. 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
- 5. 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 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
- 6. 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 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?
- 7. Alerts and Troubleshooting
- A. Default Settings and Specifications
- B. Wall-Mount the Modem
- Quick Start
- Product Info
Troubleshoot the Mobile Broadband Internet
Connection
If your modem cannot access the Internet, check the mobile broadband connection:
•
Make sure that a SIM card is installed in the modem. 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 Nano 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 42). 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 22). Contact your mobile broadband service
provider.
For more information about Internet connection problems, see TCP/IP Network Not
Responding on page 81.
Obtain an Internet IP Address From Your Service Provider
If your modem cannot access the Internet but the Signal Strength LED lights 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 58).
User Manual79Alerts and Troubleshooting
NETGEAR 4G LTE Modem LM1200