Fibre ONT Login: Huawei, ZTE and Nokia Modems Used by ISPs
Open the admin page of a fibre ONT (Huawei HG8145V5, ZTE F670L, Nokia G-240W-A) at 192.168.1.1, 192.168.100.1 or 192.168.1.254, and know what not to change.
Many fibre ISPs install an ONT, the box that ends the fibre line and often has Wi-Fi built in. Its address is usually 192.168.1.1, but some ISP firmware uses 192.168.100.1 or 192.168.1.254. The ISP controls most of its settings, and that is by design.
How to log in safely
- Look at the label for the model name, the address and the login. ISP firmware often differs from the factory default.
- Connect by Wi-Fi or a LAN cable and open the address from the label.
- Change only what you need: the Wi-Fi name and password, and the admin password.
- Leave WAN, PON and VLAN settings alone. They carry your line settings from the ISP.
- Reconnect your devices after a Wi-Fi change.
Common fibre modems and their addresses
| Model | Usual address | Notes |
|---|---|---|
| Huawei HG8145V5 | 192.168.1.1 or 192.168.100.1 | ISP login on the label |
| ZTE F670L, F660 | 192.168.1.1 | Plain firmware often uses admin and admin; ISPs often change it |
| Nokia G-240W-A | 192.168.1.1 | A common Airtel modem |
| Genexis units | 192.168.1.1 | Used by Hathway |
These are common values. ISP firmware changes them, so check the label on your device first.
Common problems
- Settings are missing or greyed out
- The ISP locks them. Use the ISP’s app or support for those changes.
- Two addresses are listed for my model
- Try each. ISP firmware decides which one is used. The router IP finder shows the real one.
- A second, ISP-only account exists
- Some ONTs have an account meant for the ISP. Do not look for it or use it. Changing WAN settings can cut your line, and the ISP can restore it.
- I want to use my own router
- Connect it to the ONT and give it a different LAN range. See own router behind an ISP router.
How to keep your router secure
- Change the default admin password and use a long one that you do not use anywhere else.
- Keep the router firmware up to date.
- Turn off remote management unless you really need it.
- Use WPA2 or WPA3 for Wi-Fi.
Questions people ask about Fibre ONT login
- What is an ONT?
- The device that converts the fibre light signal into an Ethernet connection. Many include a router and Wi-Fi.
- Why are the settings limited?
- ISPs manage the ONT remotely. Locked settings keep the line working.
Related pages
- Find your router IP
- Login not working
- Forgot password and reset
- Change Wi-Fi password
- Default IP list
- Security checklist