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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
61.
•
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
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.
TCP/IP Network Not Responding
Most TCP/IP terminal devices and routers include a ping utility for sending an echo request packet to the
designated device. The device responds with an echo reply to tell whether a TCP/IP network is responding
to requests.
Test the LAN Path to Your Modem
You can ping the modem from your computer to verify that the LAN path to your modem is set up correctly.
To ping the modem from a Windows computer:
1.
From the Windows taskbar, click the Start button and select Run.
2.
In the field provided, enter ping followed by the IP address of the modem, as in this example:
ping 192.168.5.1
3.
Click the OK button.
A message such as the following one displays:
Pinging <IP address> with 32 bytes of data
LTE Modem LB1120 and LB1121
View Monthly Data and Session Data Usage
TCP/IP Network Not Responding
Alerts and Troubleshooting
88
on page
on page 88.
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