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Netgear LB1120 User Manual - Page 83

Alert Messages, Quick Tips for Troubleshooting, Table 6. Alert messages, Alerts and Troubleshooting

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LTE Modem LB1120 and LB1121 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 70. Table 6. Alert messages Alert Message or Code Description or Solution SIM card alerts SIM Not Installed Ensure that the micro SIM card is installed correctly. See Install the Micro SIM Card on page 8. SIM Error - Check SIM Ensure that your network service provider's micro SIM card is inserted in the modem. If a problem still exists, contact your service provider's customer service. The micro SIM card might be damaged and need replacing. SIM Locked The micro SIM card is locked. For information about unlocking the SIM card, see Unblock the SIM Card With a PUK on page 54. Temperature Alerts The modem is designed to work over a wide temperature range. (For more information, see Technical and Environmental Specifications on page 92.) 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. Table 7. Quick tips for troubleshooting Problem Possible Solution You cannot connect to the Check with your mobile broadband service provider to ensure that good coverage exists Internet over the mobile in the area. broadband connection. See also Troubleshoot the Mobile Make sure that your mobile broadband account is active. Broadband Internet Connection on page 87. Make sure that the SIM card is inserted correctly into the modem (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. Alerts and Troubleshooting 83

Section	Page
Contents	3
1. Introduction and Hardware Overview	6
Introduction	7
Supported Mobile Broadband Bands	7
Package Contents	8
Install the Micro SIM Card	8
Top Panel With Status LEDs	11
Back Panel With Connectors, Buttons, and a Port	12
Modem Label	12
Position the Modem	13
Optional External Antenna	14
2. Get Started	15
Internet Connection Over Mobile Broadband	16
Connect a Computer, Switch, Hub, Router, or WiFi Router to the Modem	16
Connect a Computer to the LAN Port of the Modem	17
Connect a Router or WiFi Router to the LAN Port of the Modem	17
Access the Modem’s Web Pages for the First Time	17
Change the Language	19
3. Manage the Modem LAN Settings	20
Change the LAN Settings	21
Manage Router Mode and Bridge Mode	23
Change the DHCP Server Settings	24
Disable the DHCP Server	26
Enable the DMZ	27
Disable VPN Pass-Through	28
4. Manage the Mobile Broadband Connection	29
Manage Mobile Broadband Auto Connect Options	30
Manually Connect to or Disconnect From the Mobile Broadband Network	31
Manage APN Profiles for Mobile Broadband Connections	31
View APN Profiles or Add a Custom APN Profile	32
Select an APN Profile	34
Change an APN Profile	35
Remove an APN Profile	36
5. Secure Your Network	37
Change the Modem Password	38
Manage Port Forwarding for Incoming Traffic	38
Enable Port Forwarding and Add a Service or Application	39
Remove a Service or Application for Port Forwarding	40
Disable Port Forwarding	41
Manage Port Filtering for Outgoing Traffic	42
Block Specific Services and Applications From Accessing the Internet and Allow All Other Services and Applications	42
Allow Specific Services and Applications to Access the Internet and Block All Other Services and Applications	44
View Services and Applications on the Blacklist and Remove a Service or Application From the List	45
View Services and Applications on the Whitelist and Remove a Service or Application From the List	46
Disable Port Filtering	47
Manage SIM Card Security	48
Enable SIM Card Security	48
Enter the SIM PIN to Enable the Modem to Connect to the Internet	50
Personalize the SIM PIN	51
Disable SIM Card Security	52
Unblock the SIM Card With a PUK	54
6. Manage the Modem and Monitor Usage and the Network	56
Upgrade the Firmware of the Modem	57
Back Up and Restore the Modem Settings	58
Back Up the Settings	58
Restore the Settings	59
Return the Modem to Its Factory Default Settings	59
Use the Reset Button	60
Use the Modem’s Web Pages to Reset the Modem to Factory Defaults	60
View Monthly Data and Session Data Usage	61
Set a Plan Limit for the Data Counter	62
Change the Billing Cycle Counter or Reset the Data Counter	63
View Service Provider, Type of Service, and Signal Strength	63
View Account Details and Other Details About Your Modem	65
View Information About the Mobile Broadband Connection	66
Set Up SMS Alert Messages	67
Set the Data Limit for SMS Alert Messages	69
View Alerts	70
Turn Off the LEDs	71
7. Manage SMS Messages	72
Manage Incoming SMS Messages	73
Send an SMS Message	74
8. Frequently Asked Questions	75
What do I do when I can’t connect a device to the modem?	76
What do I do when I can’t access the Internet?	76
What do I do when the No Signal icon displays?	76
Why does the Signal Strength LED show only a few bars?	76
Why is the download or upload speed slow?	76
Can I connect multiple LAN devices to the modem?	77
How do I access the modem’s web pages?	77
What do I do if I forget my admin login password?	77
How do I disconnect from the mobile broadband network?	77
How do I find my computer’s IP address?	78
How do I find a device’s MAC address?	79
How do I find my mobile phone number?	81
Where can I find more information?	81
9. Alerts and Troubleshooting	82
Alert Messages	83
Quick Tips for Troubleshooting	83
Verify Normal Behavior With the LED Bars	84
Troubleshoot With the LED Bars	84
Power LED Bar Is Off	85
Power LED Bar Blinks Amber Fast and an Individual Signal and Strength LED Bar Lights Solid Green	85
LAN LED Is Off	86
You Cannot Log In to the Modem	86
Troubleshoot the Mobile Broadband Internet Connection	87
Obtain an Internet IP Address From Your Service Provider	87
Troubleshoot Internet Browsing	88
Changes Not Saved on the Modem’s Web Pages	88
TCP/IP Network Not Responding	88
Test the LAN Path to Your Modem	88
Test the Path From Your Computer to a Remote Device	89
A. Default Settings and Specifications	90
Factory Default Settings	91
Technical and Environmental Specifications	92
B. Wall-Mount the Modem	93
Position Your Modem	94