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
Alert Messages
The modem can display alerts to advise you of device status changes. The following
table describes alerts that might display. For information about how to view alerts, see
View Alerts on page 63.
Table 6. Alert messages
Description or SolutionAlert Message or Code
SIM card alerts
Ensure that the nano SIM card is installed correctly. See Install the Nano SIM Card on
page 8.
SIM Not Installed
Ensure that your network service provider’s SIM card is inserted in the modem. If a
problem still exists, contact your service provider’s customer service. The SIM card might
be damaged and need replacing.
SIM Error — Check SIM
The SIM card is locked. For information about unlocking the SIM card, see Unblock the
SIM Card With a PUK on page 46.
SIM Locked
Temperature Alerts
The modem is designed to work over a wide temperature range. (For more information, see Technical and
Environmental Specifications on page 85.) The modem shuts down automatically if it goes out of the supported
temperature range.
If this situation occurs, move the modem to an area where the temperature is more suitable. If the modem is too
warm, make sure that the area is well ventilated and air can circulate around the modem.
Quick Tips for Troubleshooting
The following table includes tips for troubleshooting some common problems.
User Manual75Alerts and Troubleshooting
NETGEAR 4G LTE Modem LM1200