The ZTE F680 is a high-performance dual-band ONT (Optical Network Terminal) gateway widely used by internet service providers to deliver fiber-optic connectivity. To access its wireless network for the first time, you typically need the default credentials provided by the manufacturer. 🛡️ Finding the Default Credentials
If you cannot log in at all, reset the router to its factory state.
Default credentials may vary by ISP and firmware version. If the information above does not match your device, consult your ISP’s support documentation or the label on your ZTE F680 unit.
Some ISPs use predictable default passwords. Changing it ensures that only you control access.
If the sticker is missing or unreadable, the physical manual included in the original packaging often contains these details.