Things rarely go perfectly on the first try. Here are the most common failures and how to fix them.
Warning: Enabling Bridge Mode will disable the ZTE’s Wi-Fi and all its LAN ports except one (usually LAN1). You cannot access the ZTE’s interface via Wi-Fi after this change. You must have a separate router ready. Zte F689 Bridge Mode
You will need:
| Problem | Likely Fix | |--------|-------------| | Can’t find bridge option | ISP firmware locked it. You may need to ask ISP to switch ONT to bridge mode remotely. | | No internet after bridge | Double-check VLAN ID and PPPoE credentials. Some ISPs require DHCP option 60/61. | | ONT resets to router mode | ISP TR-069 may override. Disable TR-069 or ask ISP to change config permanently. | | Slow speed | Ensure your router supports gigabit WAN and hardware NAT. | Things rarely go perfectly on the first try
Once logged in, look for a menu labeled: Power cycle: ONT → wait 1 min → router
Note: Some ISP-locked firmwares hide this menu. If you don't see it, you may need a "super admin" login (see Troubleshooting section).