ZYXEL VMG3625-T20A (02) PDF Document

The default login details for your ZYXEL VMG3625-T20A router are as follows:

To make your ZYXEL VMG3625-T20A more secure and manage it more effectively, you should regularly follow these habits:

• 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. 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 VMG3625-T20A indicate the status of the device. If none of the LEDs are on, the device is not receiving power.

To turn the wireless network on or off, press the WiFi button for more than two seconds. Check the WLAN/WPS LED on the front panel to see if the wireless network is active. To turn off the wireless network, press the WiFi button again.

To activate a secure wireless connection using WPS:

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

2. Press the WPS button for more than five seconds and release it.

3. Press the WPS button on another WPS-enabled device within range of the ZYXEL VMG3625-T20A. The WLAN/WPS LED flashes amber while it sets up a WPS connection.

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

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 will erase all configurations 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 access the Web Configurator, an HTML-based management interface, follow these steps:

1. Make sure your ZYXEL VMG3625-T20A hardware is properly connected.

2. Launch your web browser. If you are not automatically redirected to the login screen, go to http://192.168.1.1.

3. A password screen will display. Select your preferred language.

4. To access the administrative Web Configurator, type the default username ‘admin’ and the default password found on the device label into the password screen and click Login. If you have changed the password, enter your new password.

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

You can use the Quick Start Wizard to configure the basic settings for your ZYXEL VMG3625-T20A.

1. After logging into the Web Configurator, click the Wizard icon in the side bar to open the Wizard screens.

2. Click ‘Let’s Go’ to begin. The wizard will guide you through setting the time zone, Internet, and wireless settings.

3. **Time Zone:** Select the time zone of your location and click ‘Next’.

4. **Internet:** Connect an Ethernet cable or a DSL cable for Internet access. The device will automatically check the Internet status and determine your connection type. It will then show if the connection is successful, unsuccessful, or if the information is incorrect.

5. If required, select the encapsulation type your ISP uses (e.g., PPPoE) and enter your Internet connection information (username and password). Click ‘Next’.

6. **Wireless:** Turn the wireless LAN on or off. If you keep it on, set your WiFi Name (SSID) and WiFi Password. You can choose to use the same SSID for both 2.4GHz and 5GHz networks. Click ‘Done’.

7. Your ZYXEL VMG3625-T20A will save your settings and attempt to connect to the Internet.

To set up an ADSL Internet connection using PPPoE, you will need the connection information from your Internet Service Provider (ISP).

1. In the Web Configurator, navigate to **Network Setting > Broadband** and click **Add New WAN Interface**.

2. Enter the following information based on what your ISP provided:

• **General:**

• **Type:** ADSL over ATM

• **Connection Mode:** Routing

• **Encapsulation:** PPPoE

• **IPv4/IPv6 Mode:** IPv4 Only (or as specified)

• **ATM PVC Configuration:** Enter the VPI/VCI values provided by your ISP.

• **Account Information:**

• **PPP User Name:** Enter the username provided by your ISP.

• **PPP Password:** Enter the password provided by your ISP.

3. Configure this connection as your default by selecting the **Apply as Default Gateway** check box.

4. If your ISP provided static DNS server addresses, select DNS as **Static** and enter the addresses.

5. Click **Apply** to save your settings.

To configure a secure wireless network, follow these steps in the Web Configurator:

1. Go to **Network Setting > Wireless** to open the **General** screen.

2. Under **Wireless Network Setup**, enter a name for your network in the **Wireless Network Name** (SSID) field.

3. Under **Security Level**, select **More Secure**.

4. For **Security Mode**, choose **WPA2-PSK**.

5. In the **Password** field, enter a strong password for your wireless network. This key should have 8 to 63 characters.

6. Click **Apply** to save the settings.

After configuring the settings, you can connect your wireless devices using these credentials or by using the WPS feature for easier setup.

You can create different wireless networks for different types of users (e.g., a main network and a guest network).

1. **Set up the main network:** Navigate to **Network Setting > Wireless > General**. Configure your primary SSID and security settings as desired and click **Apply**.

2. **Set up additional networks (Guest/More AP):** Navigate to **Network Setting > Wireless > Guest/More AP**.

3. You will see a list of additional available SSIDs. Click the **Edit** icon next to one you wish to configure.

4. In the ‘More AP Edit’ screen:

• Enable the **Wireless** switch.

• Enter a **Wireless Network Name** for this new group (e.g., “Guest”).

• To keep guest users separate from your main network, check the **Guest WLAN** box and set the **Access Scenario** to **External Guest**.

• Under **Security Level**, select **More Secure** and set a **Security Mode** (e.g., WPA2-PSK) and a **Password** for this network.

• Click **OK** (or Apply).

5. Repeat steps 3 and 4 to configure more wireless groups if needed. The status bulbs in the Guest/More AP screen will indicate which SSIDs are active.

If your ZYXEL VMG3625-T20A does not turn on and none of the LEDs are lit, 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.

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 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. Enter this IP address in your Internet browser.

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

If you cannot access the internet via a DSL connection, follow these troubleshooting steps:

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

2. Make sure you configured a proper DSL WAN interface (Network Setting > Broadband screen) 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 have the clients 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. If the wireless client is sending or receiving a lot of information, it may have too many programs open that use the Internet.

If your ZYXEL VMG3625-T20A is not detecting your USB device, please follow these steps:

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.