85
A SINGLE PC CANNOT CONNECT TO THE ROUTER
OR THE INTERNET
Follow these steps if a single PC on the network cannot connect
to the router or to the Internet:
1. Check the Ethernet connection between your computer and
the router. Verify that the PC is connected to one of the four
LAN ports on the router.
2. Verify that the IP address of the PC is in the correct network
range. Open a DOS command window and type
ipconfig
;
this will make the PC display its IP address.
3. If the PC displays an incorrect IP address or does not display
an IP address, you’ll need to re-configure the PC’s IP
address (see Step 2: PC Configuration on page 16).
4. Check the router’s
Basic Configuration, DHCP Server
screen to verify that the settings are correct. If DHCP is
disabled, try enabling it.
5. Check the router’s
Firewall/Security, Parental Control
screen to see if that PC has been restricted
6. Check the router to verify that the Link light for the port
connected to the PC is turned on.
7. Check the PC’s network interface card to verify that the Link
light is turned on.
8. Attempt to login to the router from the problem PC.
9. If you cannot login to the router, attempt to PING the PC.
Open a DOS command window and type the following
command (assuming the router IP address is 192.168.1.1):
ping 192.168.1.1
86
10. If you do not receive any replies from the PING command,
the PC is not communicating with the router. Contact
customer support.
NO PCS CAN CONNECT TO THE INTERNET
NOTE: If you have previously connected to the Internet and
suddenly cannot, it is most likely a problem with
your ISP. Contact your ISP’s technical support.
Follow these steps if you have not yet successfully connected to
the Internet:
1. Verify that PCs connected through the router can
communicate with each other. If they can’t, follow the
troubleshooting steps in A Single PC Cannot Connect to The
Router or the Internet on page 85
2. Verify that the cable or DSL modem is connected to the
WAN port on the router.
3. Check the router to verify that the Link light for the WAN port
is turned on. If it is not, try plugging a PC into the WAN port;
if the Link light comes on, the port is functioning properly.
Plug your cable/DSL modem back into the port.
4. Check the cable/DSL modem to verify that its Link light is
turned on. If the Link light on the cable/DSL modem is not
turned on, consult the owner’s manual for the cable/DSL
modem.
5. Check the router’s
Firewall/Security, Parental Control
screen to see if any PCs have been restricted
6. Verify that the router is properly configured to interact with
your ISP. See Step 3: Basic Router Configuration on page
Summary of Contents for ENR1504
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