• Check that you are using the correct URL:

• Make sure your computer’s Ethernet card is installed and functioning properly.

• Check that you have Internet access. In your computer, click Start, (All) Programs, Accessories and then Command Prompt. In the Command Prompt window, type ‘ping’ followed by a website such as ‘zyxel.com’. If you get a reply, try to ping ‘nebula.zyxel.com’.

• Make sure you are using the correct web browser that supports HTML5. View the browser in full screen mode to display the NCC portal properly. Browsers supported are:

• Open your web browser and go to https://nebula.zyxel.com. Sign in with the correct email and password. Click Sign Up if you do not have a myZyxel account and create an account.

• At the time of writing, you can only manage Zyxel Nebula APs, Switches or Security Gateways through the NCC. See NCC Overview.

• If your Nebula Device supports NebulaFlex or NebulaFlex Pro, make sure that the Nebula Device is working in Nebula cloud manage mode with NCC Discovery enabled.

• Make sure that your Nebula Device can connect to the NCC by checking your network’s firewall/security settings. The following ports must be allowed:

• Make sure that you have registered your Nebula Devices with the NCC. See License & Inventory.

• Make sure that you have created an organization and site and add the Nebula Devices to the site. See Create Organization and Create Site.

• Make sure that you have the power cord connected to the Nebula Device and plugged in to an appropriate power source. Make sure you have the Nebula Device turned on.

• Check all cable connections. See the related Quick Start Guide.

• If the LEDs still do not turn on, you may have a hardware problem. In this case, you should contact your local customer support.

• The Nebula Device has a power-related error. Disconnect and reconnect the power cord. Make sure that you are using the included power cord for the Nebula Device and it is plugged into an appropriate power source. See the related Quick Start Guide.

• If the LED is still red, you may have a hardware problem. In this case, you should contact your local customer support.