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
Details and Other Details About Your Modem
on page 68).
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
Profiles for Mobile Broadband Connections
on page 34.
•
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.
Troubleshoot Internet Browsing
If the modem can obtain an IP address but your computer is unable to load any web pages from the Internet,
it might be for one of the following reasons:
•
The monthly data limit for your mobile broadband account might be reached.
For information about checking your usage, see
View Monthly Data and Session Data Usage
on page
64.
•
Your computer might not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www addresses) to
numeric IP addresses. Typically your mobile broadband service provider assigns the addresses of one
or two DNS servers for your use. If you entered a DNS address when you set up the modem, reboot
your computer and verify the DNS address. Alternatively, you can configure your computer manually
with DNS addresses, as explained in your operating system documentation.
•
Your computer might not use the modem as its TCP/IP bridge.
If your computer obtains its information from the modem by DHCP, reboot the computer and verify the
modem address.
For information about TCP/IP problems, see
on page 91.
Changes Not Saved on the Modem’s Web Pages
If the modem does not save the changes you make in the modem’s web pages, do the following:
•
When entering configuration settings, always click the Submit button before moving to another page
or tab, or your changes are lost.
•
Click the Refresh or Reload button in the web browser. It is possible that the changes occurred, but
the old settings might be in the web browser’s cache.
Alerts and Troubleshooting
90
LTE Modem Model LB2120
