Place the secondary Mesh node in the same room as the F6640.
Open a web browser and type 192.168.1.1 (the default gateway). zte f6640 manual pdf mesh
Ensure this is Enabled . It allows the router to automatically move devices between the 2.4GHz and 5GHz bands based on signal strength. Place the secondary Mesh node in the same room as the F6640
Link your computer to the ZTE F6640 via Ethernet cable or Wi-Fi. zte f6640 manual pdf mesh
Press the on the back of the ZTE F6640 for 3 seconds.
This is the fastest way to link a secondary node to your main F6640.