User Manual
Table Of Contents
- 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
Internet Connection Over Mobile Broadband
By default, when the modem powers up with a SIM card installed, it automatically
searches for and connects to your network provider’s mobile broadband network. This
process might take several minutes. The SIM card that is installed determines the mobile
broadband network to which the modem connects.
Note: Even though the modem might connect to the mobile broadband network of
the same service provider each time that you start the modem, the type of mobile
broadband service (LTE or 3G) to which the modem connects might differ.
If the modem does not automatically connect to the mobile broadband network after
10 minutes, the Power LED remains solid amber, and you might need to contact your
mobile service provider to get the access point name (APN) profile information and add
(see View APN Profiles or Add a Custom APN Profile on page 22) and activate (see
Select an APN Profile on page 24) a custom APN profile in the modem. If your mobile
service provider informs you that your APN profile is correct but the modem still does
not connect to the mobile broadband network, see Troubleshoot the Mobile Broadband
Internet Connection on page 79.
If you do not want the modem to connect automatically to the mobile broadband
network, change the default autoconnect option (see Manage Mobile Broadband Auto
Connect Options on page 20).
For information about your mobile service provider and the broadband connection,
see View Service Provider, Type of Service, and Signal Strength on page 56 and View
Information About the Mobile Broadband Connection on page 59.
Connect a Computer, Router, or WiFi Router
to the Modem
By default, the modem functions in Bridge mode with the IP pass-through (IPPT) enabled.
Only a single device can be connected to the Internet through the modem. (The single
device that is connected to the modem is the router, WiFi router, or computer but
depending on the capabilities of the router or WiFi router, you can connect multiple
devices to the router or WiFi router.)
User Manual15Get Started
NETGEAR 4G LTE Modem LM1200