Справочник Пользователя для ZyXEL Communications Corporation EMG2881-T20A

Chapter 12 Troubleshooting

EMG2881-T20A User’s Guide

Press the RESET button for longer than five seconds to set the EMG2881-T20A back to its factory-default 
configurations.

If the EMG2881-T20A restarts automatically, wait for the EMG2881-T20A to finish restarting, and log in to 
the Web Configurator. The password is reset to the factory default (see the device label).

If the EMG2881-T20A does not restart automatically, disconnect and reconnect the EMG2881-T20A’s 
power. Then, follow the directions above again.

I cannot access the EMG2881-T20A or ping any computer from the WLAN.

Make sure the wireless LAN is enabled on the EMG2881-T20A.

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

Make sure the wireless adapter installed on your computer is IEEE 802.11 compatible and supports the 
same wireless standard as the EMG2881-T20A.

Make sure your computer (with a wireless adapter installed) is within the transmission range of the 
EMG2881-T20A.

Check that both the EMG2881-T20A and the wireless adapter on your computer are using the same 
wireless and wireless security settings.

Make sure traffic between the WLAN and the LAN is not blocked by the firewall on the EMG2881-T20A. 

Make sure you allow the EMG2881-T20A to be remotely accessed through the WLAN interface. Check 
your remote management settings.

• See  the  chapter  on 

 in the User’s Guide for more information.

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.