Zyxel EMG2926-Q10A Router Manual PDF (Setup & Configuration Guide)

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Chapter 25 Troubleshooting

EMG2926-Q10A User’s Guide

176

5

If the problem continues, contact the vendor.

25.3

EMG2926-Q10A Access and Login

I don’t know the IP address of my EMG2926-Q10A.

1

The default IP address of the EMG2926-Q10A in

Router Mode

is

192.168.1.1

. The default IP

address of the EMG2926-Q10A in

Access Point Mode

is

192.168.1.2

.

2

If you changed the IP address and have forgotten it, you might get the IP address of the EMG2926-

Q10A in

Router Mode

by looking up the IP address of the default gateway for your computer. To do

this in most Windows computers, click

Start > Run

, enter

cmd

, and then enter

ipconfig

. The IP

address of the

Default Gateway

might be the IP address of the EMG2926-Q10A (it depends on the

network), so enter this IP address in your Internet browser.

3

If your EMG2926-Q10A in

Access Point Mode

is a DHCP client, you can find your IP address from

the DHCP server. This information is only available from the DHCP server which allocates IP

addresses on your network. Find this information directly from the DHCP server or contact your

system administrator for more information.

4

Reset your EMG2926-Q10A to change all settings back to their default. This means your current

settings are lost. See

Section 25.5 on page 179

in the

Troubleshooting

for information on

resetting your EMG2926-Q10A.

I forgot the password.

1

The default password is

1234

.

2

If this does not work, you have to reset the device to its factory defaults. See

Section 25.5 on page

179

.

I cannot see or access the

Login

screen in the Web Configurator.

1

Make sure you are using the correct IP address.

•

The default IP address of the EMG2926-Q10A in

Router Mode

is

192.168.1.1

. The default IP

address of the EMG2926-Q10A in

Access Point Mode

is

192.168.1.2

.

•

If you changed the IP address (

Section 10.4 on page 90

), use the new IP address.

•

If you changed the IP address and have forgotten it, see the troubleshooting suggestions for

I

don’t know the IP address of my EMG2926-Q10A.

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Chapter 25 Troubleshooting

EMG2926-Q10A User’s Guide

177

2

Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick

Start Guide.

3

Make sure your Internet browser does not block pop-up windows and has JavaScript and Java

enabled. See

Appendix A on page 182

.

4

Make sure your computer is in the same subnet as the EMG2926-Q10A. (If you know that there are

routers between your computer and the EMG2926-Q10A, skip this step.)

•

If there is a DHCP server on your network, make sure your computer is using a dynamic IP

address. See

Section 10.4 on page 90

.

•

If there is no DHCP server on your network, make sure your computer’s IP address is in the

same subnet as the EMG2926-Q10A. See

Section 10.4 on page 90

.

5

Reset the device to its factory defaults, and try to access the EMG2926-Q10A with the default IP

address. See

Section 1.5 on page 14

.

6

If the problem continues, contact the network administrator or vendor, or try one of the advanced

suggestions.

Advanced Suggestions

•

Try to access the EMG2926-Q10A using another service, such as Telnet. If you can access the

EMG2926-Q10A, check the remote management settings and firewall rules to find out why the

EMG2926-Q10A does not respond to HTTP.

•

If your computer is connected to the

WAN

port or is connected wirelessly, use a computer that is

connected to a

LAN

/

ETHERNET

port.

I can see the

Login

screen, but I cannot log in to the EMG2926-Q10A.

1

Make sure you have entered the password correctly. The default password is

1234

. This field is

case-sensitive, so make sure [Caps Lock] is not on.

2

This can happen when you fail to log out properly from your last session. Try logging in again after

5 minutes.

3

Disconnect and re-connect the power adaptor or cord to the EMG2926-Q10A.

4

If this does not work, you have to reset the device to its factory defaults. See

Section 25.5 on page

179

.

25.4

Internet Access

I cannot access the Internet.

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Chapter 25 Troubleshooting

EMG2926-Q10A User’s Guide

178

1

Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick

Start Guide.

2

Go to

Maintenance > Sys OP Mode

. Check your System Operation Mode setting.

•

If the EMG2926-Q10A is in

Router Mode

, make sure the WAN port is connected to a

broadband modem or router with Internet access. Your computer and the EMG2926-Q10A

should be in the same subnet.

•

If the EMG2926-Q10A is in

Access Point Mode

, make sure the WAN port is connected to a

broadband modem or router with Internet access and your computer is set to obtain an

dynamic IP address.

3

If the EMG2926-Q10A is in

Router Mode

, make sure you entered your ISP account information

correctly in the wizard or the WAN screen. These fields are case-sensitive, so make sure [Caps

Lock] is not on.

4

If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless

client are the same as the settings in the AP.

5

Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again.

6

If the problem continues, contact your ISP.

I cannot access the Internet anymore. I had access to the Internet (with the EMG2926-

Q10A), but my Internet connection is not available anymore.

1

Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick

Start Guide and

Section 1.7 on page 15

.

2

Reboot the EMG2926-Q10A.

3

If the problem continues, contact your ISP.

The Internet connection is slow or intermittent.

1

There might be a lot of traffic on the network. Look at the LEDs, and check

Section 1.7 on page 15

.

If the EMG2926-Q10A is sending or receiving a lot of information, try closing some programs that

use the Internet, especially peer-to-peer applications.

2

Check the signal strength. If the signal strength is low, try moving the EMG2926-Q10A closer to the

AP if possible, and look around to see if there are any devices that might be interfering with the

wireless network (for example, microwaves, other wireless networks, and so on).

3

Reboot the EMG2926-Q10A.

4

If the problem continues, contact the network administrator or vendor, or try one of the advanced

suggestions.

Advanced Suggestion

Page 179 / 236

Chapter 25 Troubleshooting

EMG2926-Q10A User’s Guide

179

•

Check the settings for QoS. If it is disabled, you might consider activating it.

25.5

Resetting the EMG2926-Q10A to Its Factory Defaults

If you reset the EMG2926-Q10A, you lose all of the changes you have made. The EMG2926-Q10A

re-loads its default settings, and the password resets to

1234

. You have to make all of your

changes again.

You will lose all of your changes when you push the

RESET

button.

To reset the EMG2926-Q10A:

1

Make sure the power LED is on.

2

Press the

RESET

button for one to four seconds to restart/reboot the EMG2926-Q10A.

3

Press the

RESET

button for longer than five seconds to set the EMG2926-Q10A back to its factory-

default configurations.

If the EMG2926-Q10A restarts automatically, wait for the EMG2926-Q10A to finish restarting, and

log in to the Web Configurator. The password is “1234”.

If the EMG2926-Q10A does not restart automatically,

di

sconnect and reconnect the EMG2926-

Q10A’s power. Then, follow the directions above again.

25.6

Wireless Connections

I cannot access the EMG2926-Q10A or ping any computer from the WLAN.

1

Make sure the wireless LAN is enabled on the EMG2926-Q10A.

2

Make sure the wireless adapter on your computer is working properly.

3

Make sure the wireless adapter installed on your computer is IEEE 802.11 compatible and supports

the same wireless standard as the EMG2926-Q10A.

4

Make sure your computer (with a wireless adapter installed) is within the transmission range of the

EMG2926-Q10A.

5

Check that both the EMG2926-Q10A and the wireless adapter on your computer are using the same

wireless and wireless security settings.

Page 180 / 236

Chapter 25 Troubleshooting

EMG2926-Q10A User’s Guide

180

6

Make sure traffic between the WLAN and the LAN is not blocked by the firewall on the EMG2926-

Q10A.

7

Make sure you allow the EMG2926-Q10A to be remotely accessed through the WLAN interface.

Check your remote management settings.

•

See the chapter on

Wireless LAN

in the User’s Guide for more information.

I set up URL keyword blocking, but I can still access a website that should be blocked.

Make sure that you enable parental control in the

Parental Control

screen, set up rules and turn

on the rules. Make sure that the keywords that you type are listed in the rule’s

Keyword List

.

If a keyword that is listed in the

Keyword List

is not blocked when it is found in a URL, customize

the keyword blocking using commands. See the

Customizing Keyword Blocking URL Checking

section in the

Parental Control

chapter.

I cannot access the Web Configurator after I switched to AP mode.

When you change from router mode to AP mode, your computer must have an IP address in the

range between “192.168.1.3” and “192.168.1.254”.

Refer to

Appendix B on page 191

for instructions on how to change your computer’s IP address.

What factors may cause intermittent or unstabled wireless connection? How can I solve this

problem?

The following factors may cause interference:

•

Obstacles: walls, ceilings, furniture, and so on.

•

Building Materials: metal doors, aluminum studs.

•

Electrical devices: microwaves, monitors, electric motors, cordless phones, and other wireless

devices.

To optimize the speed and quality of your wireless connection, you can:

•

Move your wireless device closer to the AP if the signal strength is low.

•

Reduce wireless interference that may be caused by other wireless networks or surrounding

wireless electronics such as cordless phones.

•

Place the AP where there are minimum obstacles (such as walls and ceilings) between the AP and

the wireless client.

•

Reduce the number of wireless clients connecting to the same AP simultaneously, or add

additional APs if necessary.

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