Use it as-is if you are a normal user. If you are a power user, immediately demand a pure fiber modem (ONT) and buy your own router (Asus RT-AX58U or TP-Link Archer AX72). The F6640 is a jail cell with fast Wi-Fi.
The physical components are comparable to a $150-$200 retail router (like TP-Link Archer AX50). ZTE did not cheap out on the chips. router zte f6640
This gateway is designed to be the "brain" of a modern smart home or small office (SOHO). Use it as-is if you are a normal user
began their rhythmic dance [29]. After a few minutes, the steady glow signaled that the GPON connection router zte f6640