ZYXEL VMG3312-T20A (02) PDF Document

The default login details for the ZYXEL VMG3312-T20A are as follows:

The ZYXEL VMG3312-T20A has the following features:

To manage your ZYXEL VMG3312-T20A more securely and effectively, follow these good habits regularly:

• 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 device to its factory default settings. If you backed up an earlier configuration file, you would not have to totally re-configure the device. You could simply restore your last configuration.

The LED lights on your ZYXEL VMG3312-T20A indicate the following statuses. Note that none of the LEDs will be on if the device is not receiving power.

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 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. On the ZYXEL VMG3312-T20A, you need to press the WPS button for more than five seconds.

3. Press the WPS button on another WPS-enabled device within range of the device. The WLAN/WPS LED flashes amber while the 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.

To turn off the wireless network, press the WiFi button. The WLAN/WPS LED turns off when the wireless network is off. For the ZYXEL VMG3312-T20A, press the WLAN button for more than two seconds to toggle the wireless function.

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 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.

To attach your ZYXEL VMG3312-T20A to a wall, follow these steps:

1. Drill into a wall two holes 3 mm ~ 4 mm (0.12″ ~ 0.16″) wide, 20 mm ~ 30 mm (0.79” ~ 1.18”) deep and 126mm apart. Place two screw anchors in the holes.

2. Screw two screws with 6mm ~ 8 mm (0.24″ ~ 0.31″) wide heads into the screw anchors. Do not screw the screws all the way in to the wall; leave a small gap between the head of the screw and the wall. The gap must be big enough for the screw heads to slide into the screw slots and the connection cables to run down the back of the device.

3. Use the holes on the bottom of the device to hang it on the screws.

Note: Wall-mount the device vertically. Attach the bracket to your device with the bracket holes facing down. Make sure the screws are securely fixed to the wall and strong enough to hold the weight of the device with the connection cables.

1. Make sure your ZYXEL VMG3312-T20A hardware is properly connected.

2. Launch your web browser. If the 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 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 new 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.

If your ZYXEL VMG3312-T20A does not turn on, follow these steps:

1. Make sure the ZYXEL VMG3312-T20A is turned on.

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

3. Make sure the power adaptor or cord is connected to the device and plugged into an appropriate power source. Ensure the power source is turned on.

4. Turn the ZYXEL VMG3312-T20A off and on.

5. If the problem continues, contact the vendor.

If an LED on your ZYXEL VMG3312-T20A is not behaving as expected, please perform the following checks:

1. Make sure you understand the normal behavior of the LED by checking the LED table in the documentation.

2. Check the hardware connections.

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

4. Turn the ZYXEL VMG3312-T20A off and on.

5. If the problem continues, contact the vendor.

1. The default LAN IP address for the ZYXEL VMG3312-T20A is 192.168.1.1.

2. If you changed the IP address and have forgotten it, you might find it 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 listed as the “Default Gateway” might be the IP address of your ZYXEL VMG3312-T20A. Try entering this IP address in your Internet browser.

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

1. Check the device label for the default login password.

2. If that does not work, you have to reset the device to its factory defaults. This will erase your current configuration.

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. If you’ve forgotten the new address, try the troubleshooting steps for a forgotten IP address.

2. Check the hardware connections and ensure 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 possible, try to log in from another interface (like Telnet) and check the service control settings for HTTP and HTTPS (Maintenance > Remote MGMT).

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

6. If the problem persists, contact your network administrator or vendor.

1. Make sure you have entered the password correctly. Check the device label for the default login password. The field is case-sensitive, so ensure [Caps Lock] is not on.

2. You cannot log in to the web configurator if someone else is using Telnet to access the device. Log out of the other session or ask the other person to log out.

3. Turn the ZYXEL VMG3312-T20A 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 on the ZYXEL VMG3312-T20A and your wireless client, and that the wireless settings on both are the same.

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

5. If you’re connecting an Ethernet cable to the WAN port for an Ethernet WAN connection and an RJ-11 cable to the DSL port, be aware that the Ethernet WAN connection has priority. Ensure the Ethernet WAN port is connected to a modem or router with Internet access. If it doesn’t, remove the Ethernet cable or reconfigure the port back to a LAN port.

6. If the problem continues, contact your ISP.

1. Make sure you have the DSL WAN port connected to a telephone jack (or the DSL/modem jack on a splitter).

2. Make sure you configured a proper DSL WAN interface (Network Setting > Broadband) with the Internet account information provided by your ISP and that it is enabled.

3. Check that the LAN interface you are connected to is in the same interface group as the DSL connection (Network Setting > Interface Grouping).

4. If you set up a WAN connection using bridging service, make sure you turn off the DHCP feature in the LAN screen to allow clients to get WAN IP addresses directly from your ISP’s DHCP server.

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 VMG3312-T20A.

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 VMG3312-T20A.