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Page 171 / 178 Scroll up to view Page 166 - 170
Troubleshooting
174
AC1750
Smart
WiFi
Router
The ADVANCED Home page displays.
5.
In the Internet Port pane, click the
Connection Status
button.
The Connection Status window opens.
6.
Check the Connection Status window to see if your PPPoE connection is up and working.
If the router is not connected, click the
Connect
button.
The router continues to attempt to connect indefinitely.
7.
If you cannot connect after several minutes, the router might be set up with an incorrect
service name, user name, or password, or your ISP might be experiencing a provisioning
problem.
Unless you connect manually, the router does not authenticate using PPPoE until data is
transmitted to the network.
Troubleshoot Internet Browsing
If your 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 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.
•
The router might not be configured as the default gateway in your computer.
Reboot the computer and verify that the 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 router. You might need to go to Internet Explorer and select
Tools > Internet Options
, click the
Connections
tab, and select the
Never dial a
connection
. Other browsers provide similar options.
Changes Not Saved
If the router does not save the changes that you make in the router interface, do the following:
•
When entering configuration settings, always click the
Apply
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.
Page 172 / 178
Troubleshooting
175
AC1750
Smart
WiFi
Router
Wireless Connectivity
If you are experiencing trouble connecting wirelessly to the router, try to isolate the problem:
•
Does the wireless device or computer that you are using find your wireless network?
If not, check the WiFi LED on the front of the router. If it is off, you can press the
WiFi
On/Off
button on the router to turn the router wireless radios back on.
If you disabled the router’s SSID broadcast, then your wireless network is hidden and
does not display 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)?
•
If you want to view the wireless settings for the router, use an Ethernet cable to connect a
computer to a LAN port on the router. Then log in to the router, and select
BASIC >
Wireless
.
Note:
Be sure to click the
Apply
button if you change settings.
If your wireless device finds your network but the signal strength is weak, check these
conditions:
•
Is your router too far from your computer or too close? Place your computer near the
router but at least 6 feet (1.8 meters) away and see whether the signal strength improves.
•
Are objects between the router and your computer blocking the wireless signal?
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 using the ping utility in your computer or workstation.
Test the LAN Path to Your Router
You can ping the router from your computer to verify that the LAN path to your router is set up
correctly.
You can ping the router from your computer to verify that the LAN path to your router is set up
correctly.
To ping the router from a Windows computer:
1.
From the Windows toolbar, click
Start
and select
Run
.
2.
In the field provided, type
ping
followed by the IP address of the router, as in this example:
ping www.routerlogin.net
Page 173 / 178
Troubleshooting
176
AC1750
Smart
WiFi
Router
3.
Click the
OK
button.
You 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, one of the following problems might be present:
•
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 router and
computer are connected to a separate Ethernet switch, make sure that the link LEDs are
lit for the switch ports that are connected to your computer and 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 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 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 DNS server.
If the path is functioning correctly, messages display that are similar to those shown in the
Test the LAN Path to Your Router
on page
175.
If you do not receive replies, check the following:
•
Check that the IP address of your router is listed in your computer as the default gateway.
If DHCP assigns the IP configuration of your computers, this information is not visible in
your computer Network Control Panel. Verify that the IP address of the 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.
Page 174 / 178
Troubleshooting
177
AC1750
Smart
WiFi
Router
•
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 Setup page.
•
Your ISP might 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. Some ISPs additionally restrict access to the MAC address of a
single computer connected to that modem. If your ISP does this, configure your router to
“clone” or “spoof” the MAC address from the authorized computer.
Page 175 / 178
178
A
A.
Supplemental Information
This appendix covers the following topics:
•
Factory Settings
•
Technical Specifications

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