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Troubleshooting
126
D6300 WiFi DSL Modem Router
Troubleshoot PPPoE
If you are using PPPoE, try troubleshooting your Internet connection.
To troubleshoot a PPPoE connection:
1.
Log in to the WiFi modem router.
2.
Select
Administration > Router Status
.
3.
Click
Connection Status
. If all of the steps indicate OK, then your PPPoE connection is
up and working.
If any of the steps indicate Failed, you can attempt to reconnect by clicking
Connect
. The
WiFi modem router continues to attempt to connect indefinitely.
If you cannot connect after several minutes, you might be using an incorrect service name,
user name, or password. There might also be a provisioning problem with your ISP.
Note:
Unless you connect manually, the WiFi modem router does not
authenticate using PPPoE until data is transmitted to the network.
Troubleshoot Internet Browsing
If your WiFi modem router can obtain an IP address but your computer is unable to load any
web pages from the Internet, check the following:
•
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 ISP provides the addresses of one or two DNS servers for your use. If you
entered a DNS address during the WiFi modem router’s configuration, restart your
computer.
Alternatively, you can configure your computer manually with a DNS address, as
explained in the documentation for your computer.
•
Your computer might not have the WiFi modem router configured as its default gateway.
Reboot the computer, and verify that the WiFi modem router address
(www.routerlogin.net) is listed by your computer as the default gateway address.
•
You might be running login software that is no longer needed. If your ISP provided a
program to log you in to the Internet (such as WinPoET), you no longer need to run that
software after installing your WiFi modem router. You might need to go to Internet
Explorer and select
Tools > Internet Options
, click the
Connections
tab, and select
Never dial a connection
.
If the WiFi modem router does not save changes you have made in the browser interface,
check the following:
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Troubleshooting
127
D6300 WiFi DSL Modem Router
•
When entering configuration settings, be sure to click
Apply
before moving to another
screen or tab, or your changes could be lost.
•
Click
Refresh
or
Reload
in the web browser. The changes might have occurred, but the
web browser might be caching the old configuration.
Changes Not Saved
If the WiFi modem router does not save the changes you make in the WiFi modem router
interface, check the following:
•
When entering configuration settings, always click the
Apply
button before moving to
another screen or tab, or your changes are lost.
•
Click the
Refresh
or
Reload
button in the web browser. The changes might have
occurred, but the old settings might be in the web browser’s cache.
Incorrect Date or Time
Select
ADVANCED > Security > Schedule
to display the current date and time. The WiFi
modem router uses the Network Time Protocol (NTP) to obtain the current time from one of
several network time servers on the Internet. Each entry in the log is stamped with the date
and time of day. Problems with the date and time function can include the following:
•
Date shown is January 1, 2000. This value means the WiFi modem router has not yet
successfully reached a network time server. Check that your Internet access is
configured correctly. If you have finished setting up the WiFi modem router, wait at least 5
minutes, and check the date and time again.
•
Time is off by one hour. The WiFi modem router does not automatically sense daylight
saving time. In the Schedule screen, select the
Automatically adjust for daylight
savings time
check box.
Wireless Connectivity
If you are having trouble connecting wirelessly to the WiFi modem router, try to isolate the
problem.
•
Does the wireless device or computer that you are using find your wireless network?
If not, check the Wireless LEDs on the front of the WiFi modem router. They should be lit.
If they are not, you can press the
WiFi On/Off
button on the back of the WiFi modem
router to turn the WiFi modem router’s wireless radio back on.
If you disabled the WiFi modem router’s SSID broadcast, then your wireless network is
hidden and does not show up in your wireless client’s scanning list. (By default, SSID
broadcast is enabled.)
•
Does your wireless device support the security that you are using for your wireless
network (WPA or WPA2)?
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Troubleshooting
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D6300 WiFi DSL Modem Router
•
If you want to view the wireless settings for the WiFi modem router, use an Ethernet cable
to connect a computer to a LAN port on the WiFi modem router. Then log in to the WiFi
modem router and select
Setup > Wireless Settings
see (
Basic Wireless Settings
on
page 37).
Note:
Be sure to click
Apply
if you made changes.
Wireless Signal Strength
If your wireless device finds your network, but the signal strength is weak, check these
conditions:
•
Is your WiFi modem router too far from your computer, or too close? Place your computer
near the WiFi modem router, but at least 6 feet away, and see whether the signal strength
improves.
•
Is your wireless signal blocked by objects between the WiFi modem router and your
computer?
Restore the Factory Settings and Password
This section explains how to restore the factory settings, changing the WiFi modem router’s
administration password back to
password
. You can erase the current configuration and
restore factory defaults in two ways:
•
Use the Erase function of the WiFi modem router (see
Erase
on page 91).
•
Use the Restore Factory Settings button on the back of the WiFi modem router. See
Factory Settings
on page 131. If you restore the factory settings and the WiFi modem
router fails to restart, or the green Power LED continues to blink, the unit might be
defective. If the error persists, you might have a hardware problem and should contact
technical support at
.
Troubleshoot Your Network Using the Ping Utility
Most network devices and routers contain a ping utility that sends an echo request packet to
the designated device. The device then responds with an echo reply. You can easily
troubleshoot a network by using the ping utility in your computer or workstation.
Test the LAN Path to Your Router
You can ping the WiFi modem router from your computer to verify that the LAN path to your
WiFi modem router is set up correctly.
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Troubleshooting
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D6300 WiFi DSL Modem Router
To ping the WiFi modem router from a computer running Windows:
1.
From the Windows toolbar, click
Start
, and then select
Run
.
2.
In the field provided, type
ping
followed by the IP address of the WiFi modem router, as in
this example:
ping www.routerlogin.net
3.
Click
OK
.
You should see a message like this one:
Pinging <IP address > with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
If the path is not functioning correctly, you could have one of the following problems:
•
Wrong physical connections
For a wired connection, make sure that the numbered LAN port LED is lit for the port to
which you are connected.
Check that the appropriate LEDs are lit for your network devices. If your WiFi modem
router and computer are connected to a separate Ethernet switch, make sure that the
Ethernet LEDs are lit for the switch ports that are connected to your computer and WiFi
modem router.
•
Wrong network configuration
Verify that the Ethernet card driver software and TCP/IP software are both installed and
configured on your computer.
Verify that the IP address for your WiFi modem router and your computer are correct and
that the addresses are on the same subnet.
Test the Path from Your Computer to a Remote Device
After verifying that the LAN path works correctly, test the path from your computer to a remote
device.
1.
From the Windows toolbar, click the
Start
button, and then select
Run
.
2.
In the Windows Run window, type:
ping -n 10
<
IP address
>
where <IP address> is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies like the examples shown in the previous section are
displayed.
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Troubleshooting
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D6300 WiFi DSL Modem Router
If you do not receive replies:
•
Check that your computer has the IP address of your WiFi modem router listed as the
default gateway. If the IP configuration of your computer is assigned by DHCP, this
information is not visible in your computer’s Network Control Panel. Verify that the IP
address of the WiFi modem router is listed as the default gateway.
•
Check to see that the network address of your computer (the portion of the IP address
specified by the subnet mask) is different from the network address of the remote device.
•
Check that your cable or DSL modem is connected and functioning.
•
If your ISP assigned a host name to your computer, enter that host name as the account
name in the Internet Basic Settings screen.
•
Your ISP could be rejecting the Ethernet MAC addresses of all but one of your computers.
Many broadband ISPs restrict access by allowing traffic only from the MAC address of your
broadband modem, but some ISPs additionally restrict access to the MAC address of a
single computer connected to that modem. If this is the case, then configure your WiFi
modem router to “clone” or “spoof” the MAC address from the authorized computer.

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