Zyxel NBG-318S Login: Router Admin Setup Guide
The first time I set up an NBG-318S, the login page asked for a password…
The first time I set up an NBG-318S, the login page asked for a password and nothing else, and I kept looking for a username box that was not there. I have since learned the NBG-318S logs in with a password only, so the username stays blank.
This guide gives you the correct defaults for the NBG-318S and the four steps that will get you into the admin panel.
Log in at 192.168.1.1 with the password 1234 — leave the username blank.
The fastest way in: tap the button below, then sign in with the details in the box.
IP Address: 192.168.1.1
Username: (blank — password-only login)
Password: 1234
Login to Admin Panel →This button opens your router’s own login page. It works only when your device is connected to this router, by WiFi or cable.
Zyxel NBG-318S Default Login Details
I checked these defaults against the NBG-318S setup flow before I wrote them down, so the table below matches the router you have in front of you.
These are the factory defaults for the NBG-318S: the login is password-only — leave the username blank and enter the password 1234 — and the login IP address is 192.168.1.1.
| Detail | Value |
|---|---|
| Login IP | 192.168.1.1 |
| Username | (blank — password-only login) |
| Password | 1234 |
How to Log In to the Zyxel NBG-318S
I walk through this in the same order every time, because the order is what keeps a login from going wrong. If your router asks you to create a password instead, the Zyxel login guide covers that first-setup flow too.
- Connect your computer or phone to the NBG-318S with an Ethernet cable or over Wi-Fi.
- Open a browser and go to 192.168.1.1.
- Leave the username blank — this is a password-only login — and type the password 1234.
- Click Login or Submit. The admin panel opens, and you can change the Wi-Fi name and password, update the firmware, or change the router settings.
Default Username and Password — All Variants
I have seen this catch owners out: the same model can ask for a fixed password on one firmware and ask you to create one on another, so check which case matches your router.
The factory default login for the NBG-318S is password-only. On some firmware, admin is also accepted as the username. If a password was set later, only that password works.
| Version | Username | Password |
|---|---|---|
| Factory default | (blank) | 1234 |
| Some firmware | admin | 1234 — admin is also accepted as the username on some firmware |
| After a password change | (blank) | The password you set is the only one that works — or reset the router to restore the factory state. |
Change WiFi Password and Network Name
I change the Wi-Fi password first on every router I set up, because every device in the house connects with it.
Once you are logged in to the NBG-318S admin panel, changing the Wi-Fi details takes about a minute.
- Log in at 192.168.1.1 with the password 1234.
- Open the Wireless settings section of the admin panel.
- Change the network name (SSID), or leave it as it is.
- Type a new Wi-Fi password, then save the settings.
- Reconnect your devices with the new password.
Use a password of at least 12 characters with a mix of letters and numbers, and avoid reusing a password you use somewhere else.
Login Not Working?
I start with the connection itself, because that is where most login failures begin, and I work through the list in the order it is written.
If the login page will not open or the password is rejected, work through these fixes:
- Make sure your device is connected to the NBG-318S network, not to mobile data or a different Wi-Fi network.
- Type the address exactly: http://192.168.1.1, with no extra letters or spaces.
- Try a different browser, or clear the browser cache and try again.
- Check that Caps Lock is off, and type the password exactly as it is — passwords are case-sensitive.
- Restart the router: unplug it, wait 30 seconds, and plug it back in.
If you still cannot log in because the password was changed and forgotten, reset the router to factory settings: press and hold the rear RESET button for at least 5 seconds, until the device reboots to factory defaults.
The password returns to the factory default 1234, so you can log in and set a new password.
Key specs: The Zyxel NBG-318S is an 802.11g Super G wireless router with HomePlug AV powerline.
