34
Troubleshooting
4-Port Gigabit Security Router with VPN
Appendix A
I want to test my Internet connection.
Check your TCP/IP settings.
1.
Windows 98 and Millennium
Refer to Windows Help for details. Make sure
Obtain IP
address automatically
is selected in the settings.
Windows 2000
Click
a.
Start
,
Settings
, and
Control Panel
. Double-
click
Network and Dial-Up Connections
.
Right-click the
b.
Local Area Connection
that is
associated with the Ethernet adapter you are using,
and click
Properties
.
In the
c.
Components checked are used by this
connection
box, select
Internet Protocol (TCP/IP)
,
and click
Properties
. Make sure that
Obtain an IP
address automatically
and
Obtain DNS server
address automatically
are selected.
Click
d.
OK
in the
Internet Protocol (TCP/IP) Properties
window, and click
OK
in the
Local Area Connection
Properties
window.
Restart the computer if asked.
e.
Windows XP
The following instructions are for the default interface
of Windows XP. If you are using the Classic interface (the
icons and menus look like previous Windows versions),
please follow the instructions for Windows 2000.
Click
a.
Start
and
Control Panel
.
Click the
b.
Network and Internet Connections
icon
and then the
Network Connections
icon.
Right-click the
c.
Local Area Connection
associated
with your Ethernet adapter, and click
Properties
.
In the
d.
This connection uses the following items
box, select
Internet Protocol (TCP/IP)
and click
Properties
. Make sure that
Obtain an IP address
automatically
and
Obtain DNS server address
automatically
are selected.
Open a command prompt:
2.
Windows 98 and Millennium: Click
a.
Start
and
Run
.
In the
Open
field, type
command
. Press
Enter
or
click
OK
.
Windows 2000 and XP: Click
b.
Start
and
Run
. In the
Open
field, type
cmd
. Press
Enter
or click
OK
.
At the command prompt, type
3.
ping 192.168.1.1
and
press
Enter
.
If you get a reply, the computer is communicating
•
with the Router.
If you do NOT get a reply, check the cable, and make
•
sure
Obtain an IP address automatically
is selected
in the TCP/IP settings for your Ethernet adapter.
At the command prompt, type
4.
ping
followed by your
Internet IP address and press
Enter
. The Internet
IP Address can be found in the web interface of the
Router. For example, if your Internet IP address is
1.2.3.4, you would enter
ping 1.2.3.4
and press
Enter
.
If you get a reply, the computer is connected to
•
the Router.
If you do NOT get a reply, try the ping command
•
from a different computer to verify that your
original computer is not the cause of the problem.
At the command prompt, type
5.
ping www.linksys.com
and press
Enter
.
If you get a reply, the computer is connected to
•
the Internet. If you cannot open a web page, try
the ping command from a different computer to
verify that your original computer is not the cause
of the problem.
If you do NOT get a reply, there may be a problem
•
with the connection. Try the ping command from
a different computer to verify that your original
computer is not the cause of the problem.
I am not getting an IP address on the Internet with my
Internet connection.
Refer to “I want to test my Internet connection” above
1.
to verify that you have connectivity.
If you need to clone the MAC address of your Ethernet
2.
adapter onto the Router, see the MAC Address Clone
section of “Chapter 5: Setting Up and Configuring the
Router” for details.
Make sure you are using the right Internet settings.
3.
Contact your ISP to see if your Internet connection type
is DHCP, Static IP Address, or PPPoE (commonly used by
DSL consumers). Please refer to the Basic Setup section
of “Chapter 5: Setting Up and Configuring the Router”
for details on Internet Connection Type settings.
Make sure you use the right cable. Check to see if the
4.
Internet LED is solidly lit.
Make sure the cable connecting from your cable or
5.
DSL modem is connected to the Router’s Internet port.
Verify that the Status page of the Router’s Web-based
Utility shows a valid IP address from your ISP.
Turn off the computer, Router, and cable/DSL modem.
6.
Wait 30 seconds, and then turn on the Router, cable/
DSL modem, and computer. Check the System
Summary tab of the Router’s Web-based Utility to see
if you get an IP address.
