ZYXEL XMG3927-B50A (01) PDF Document

The default login details for your ZYXEL XMG3927-B50A are as follows:

The user guide for the ZYXEL XMG3927-B50A uses the following conventions:

Syntax Conventions:

• All models in this series may be referred to as the “Zyxel Device” in this guide.

• Product labels, screen names, field labels and field choices are all in bold font.

• A right angle bracket ( > ) within a screen name denotes a mouse click. For example, Network Setting > Routing > DNS Route means you first click Network Setting in the navigation panel, then the Routing sub menu and finally the DNS Route tab to get to that screen.

Icons Used in Figures:

Figures in the user guide may use the following generic icons. The Zyxel Device icon is not an exact representation of your device.

Do the following things regularly to make the ZYXEL XMG3927-B50A more secure and to manage it more effectively:

• Change the password. Use a password that’s not easy to guess and that consists of different types of characters, such as numbers and letters.

• Write down the password and put it in a safe place.

• Back up the configuration (and make sure you know how to restore it). Restoring an earlier working configuration may be useful if the device becomes unstable or even crashes. If you forget your password, you will have to reset the Zyxel Device to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the Zyxel Device. You could simply restore your last configuration.

To use the Web Configurator, you need to allow:

• Web browser pop-up windows from your Zyxel Device. Web pop-up blocking is enabled by default in Windows 7.

• JavaScript (enabled by default).

• Java permissions (enabled by default).

Follow these steps to access the configurator:

1. Make sure your Zyxel Device hardware is properly connected.

2. Launch your web browser. If the Zyxel Device does not automatically re-direct you to the login screen, go to http://192.168.1.1.

3. A password screen displays. Select the language you prefer.

4. To access the administrative Web Configurator and manage the Zyxel Device, type the default username admin and the randomly assigned default password (see the device label) in the password screen and click Login. If you have changed the password, enter your password and click Login.

5. The first time you log in, a screen will prompt you to change your password. Enter a new password, retype it to confirm, and click Change password. If you prefer to use the default password, click Skip.

The WAN connection priority for the ZYXEL XMG3927-B50A is as follows:

1. Ethernet WAN

2. G.fast/DSL

3. Cellular WAN (3G/4G)

If none of the LEDs are on, the ZYXEL XMG3927-B50A is not receiving power. The LED behaviors are described in the table below:

If the wireless network is turned off, press the WiFi button. Check the WLAN/WPS LED on the front panel to see if the wireless network is active. You can also use the WPS button to quickly set up a secure wireless connection between the Zyxel Device and a WPS-compatible client by adding one device at a time.

To activate WPS:

1. Make sure the POWER LED is on and not blinking.

2. Press the WPS button and release it.

3. Press the WPS button on another WPS-enabled device within range of the Zyxel Device. The WLAN/WPS LED flashes amber while the Zyxel Device sets up a WPS connection with the other wireless device.

4. Once the connection is successfully made, the WLAN/WPS LED shines blue or green.

For the ZYXEL XMG3927-B50A, press the WLAN button for more than one second, and the WPS button for more than one second.

If you forget your password or cannot access the Web Configurator, you will need to use the RESET button to reload the factory-default configuration file. This means that you will lose all configurations that you had previously. The password will be reset to the factory default (see the device label), and the LAN IP address will be “192.168.1.1”.

1. Make sure the POWER LED is on (not blinking).

2. To set the device back to the factory default settings, press the RESET button for more than five seconds or until the POWER LED begins to blink and then release it. When the POWER LED begins to blink, the defaults have been restored and the device restarts.

If your ZYXEL XMG3927-B50A does not turn on, follow these steps:

1. Make sure the Zyxel Device is turned on.

2. Make sure you are using the power adaptor or cord included with the Zyxel Device.

3. Make sure the power adaptor or cord is connected to the Zyxel Device and plugged in to an appropriate power source. Make sure the power source is turned on.

4. Turn the Zyxel Device off and on.

5. If the problem continues, contact the vendor.

If one of the LEDs does not behave as expected, try the following:

1. Make sure you understand the normal behavior of the LED.

2. Check the hardware connections.

3. Inspect your cables for damage. Contact the vendor to replace any damaged cables.

4. Turn the Zyxel Device off and on.

5. If the problem continues, contact the vendor.

1. The default LAN IP address is 192.168.1.1.

2. If you changed the IP address and have forgotten it, you might get the IP address by looking up the IP address of the default gateway for your computer. 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 Zyxel Device.

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

1. See the cover page or device label for the default login names and associated passwords.

2. If those do not work, you have to reset the device to its factory defaults.

1. Make sure you are using the correct IP address. The default is 192.168.1.1. If you changed it, use the new IP address.

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

3. Make sure your Internet browser does not block pop-up windows and has JavaScripts and Java enabled.

4. If it is possible to log in from another interface, check the service control settings for HTTP and HTTPS (Maintenance > Remote MGMT).

5. Reset the device to its factory defaults, and try to access the Zyxel Device with the default IP address.

1. Make sure you have entered the password correctly. See the cover page for the default login names and associated passwords. The field is case-sensitive, so make sure [Caps Lock] is not on.

2. You cannot log in to the web configurator while someone is using Telnet to access the Zyxel Device. Log out of the Zyxel Device in the other session, or ask the person who is logged in to log out.

3. Turn the Zyxel Device off and on.

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

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

2. Make sure you entered your ISP account information correctly in the Network Setting > Broadband screen. These fields are case-sensitive, so make sure [Caps Lock] is not on.

3. If you are trying to access the Internet wirelessly, make sure that you enabled the wireless LAN in the Zyxel Device and your wireless client and that the wireless settings are the same on both.

4. Disconnect all the cables from your device and reconnect them.

5. If you’re connecting both Ethernet WAN and DSL, make sure the Ethernet WAN is connected to a modem or router with Internet access. The Ethernet WAN connection has priority over the DSL connection.

6. If the problem continues, contact your ISP.

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.

• Try closing some programs that use the Internet, especially peer-to-peer applications.

1. Disconnect the USB device.

2. Reboot the Zyxel Device.

3. If you are connecting a USB hard drive that comes with an external power supply, make sure it is connected to an appropriate power source that is on.

4. Re-connect your USB device to the Zyxel Device.

1. Disconnect the Ethernet cable from the Zyxel Device’s LAN port or from your computer.

2. Re-connect the Ethernet cable.