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Chapter 6: Troubleshooting

Problem

Action

Cannot access the Internet

via wireless LAN adapter.

•

Move the router closer to the wireless client.

•

Check whether the wireless adapter is

connected to the correct wireless router.

•

Check whether the wireless channel in use

conforms to the channels available in your

country/area.

•

Check the encryption settings.

•

Check if the ADSL or Cable connection is

correct.

•

Retry using another Ethernet cable.

Internet is not accessible.

•

Check the status indicators on the ADSL

modem and the wireless router.

•

Check if the WAN LED on the wireless

router is ON. If the LED is not ON, change

the cable and try again.

When ADSL Modem “Link”

light is ON (not blinking), this

means Internet Access is

possible.

•

Restart your computer.

•

Refer to the Quick Start Guide of the

wireless router and re-configure the settings.

•

Check if the WAN LED on the wireless

router is ON.

•

Check the wireless encryption settings.

•

Check if the computer can get the IP

address (via both wired network and

wireless network).

•

Ensure that your web browser is configured

to use the local LAN, and is not configured

to use a proxy server.

If the ADSL “LINK” light blinks

continuously or stays off,

Internet access is not possible

- the Router is unable to

establish a connection with

the ADSL network.

•

Ensure that all your cables are all properly

connected .

•

Disconnect the power cord from the ADSL

or cable modem, wait a few minutes, then

reconnect the cord.

•

If the ADSL light continues to blink or stays

OFF, contact your ADSL service provider.

Network name or encryption

keys are forgotten.

•

Try setting up the wired connection and

configuring the wireless encryption again.

•

Press the Restore button at the rear panel

of the wireless router for more than five

seconds.

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Problem

Action

How to restore the system to

its default settings?

•

Press the Restore button at the rear panel

of the wireless router for more than five

seconds.

•

Refer to the section

Restoring/Saving/

Uploading settings

in Chapter ³ of this

user manual.

The following are the factory default settings:

User Name:

admin

Password:

admin

Enable DHCP:

Yes (if WAN cable is plugged in)

IP address:

19±.168.1.1

Domain Name:

(Blank)

Subnet Mask:

±55.±55.±55.0

DNS Server 1:

19±.168.1.1

DNS Server 2:

(Blank)

SSID:

ASUS

I cannot use 19±.168.1.1 to

enter the web GUI.

Check the router’s operation mode.

•

In the Router mode, the default IP address

is 19±.168.1.1.

•

In the AP mode, use Device Discovery to

find the router’s IP address.

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Chapter 6: Troubleshooting

ASUS DDNS Service

RT-N15U supports the ASUS DDNS service. When exchanging devices at the

service center, if you have registered the ASUS DDNS service and want to keep

the original domain name, data transfer is a must. Visit your local service center for

more information.

Notes

:

• If there is no activity in the domain - such as reconfiguring the router or accessing the

registered domain name - within 90 days, the system automatically deletes the registered

information.

• If you encounter any problem or difficulty in using your device, contact the service center.

Frequently Asked Questions (FAQs)

1.

Will the registered information be lost or registered by others?

If you have not updated the registered information in 90 days, the system

automatically deletes the registered information and the domain name may be

registered by others.

2.

I did not register the ASUS DDNS for the router I bought six months ago.

Can I still register it?

Yes, you can still register the ASUS DDNS service for your router. The DDNS

service is embedded in your router, so you can register the ASUS DDNS

service anytime. Before registering, click

Query

to check if the hostname has

been registered or not. If not, the system registers the hostname automatically.

3.

I have registered a domain name before and it has been working well until

my friends told me that they could not access my domain name.

Check the following:

1. The internet is working well.

±. The DNS server is working well.

². The last time you updated the domain name.

If there are still problems in accessing your domain name, contact the service

center.

4.

Can I register two domain names to separately access my http and ftp

servers?

No, you cannot. You can only register one domain name for one router. Use

port mapping to implement security in the network.

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5.

After restarting the router, why is it that I see different WAN IPs in MS

DOS and in the router configuration page?

This is normal. The interval time between the ISP DNS server and ASUS

DDNS results in different WAN IPs in MS DOS and in the router configuration

page. Different ISPs may have different interval time for IP updating.

6.

Is the ASUS DDNS service free, or is it just a trial version?

The ASUS DDNS service is a free and embedded service in some ASUS

routers. Check your ASUS router if it supports the ASUS DDNS service.

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