Telnet Zte F6640 'link' · Must Watch

: Modifying factory settings via Telnet can "brick" your device. Always back up your configuration before making changes.

You have a narrow window of about 90 seconds. If the modem fully boots and contacts the ISP’s TR-069 server, Telnet will shut down. You must be fast. telnet zte f6640

sendcmd 1 DB set SysInfo 0 FactoryDefault 1 sendcmd 1 DB save reboot : Modifying factory settings via Telnet can "brick"

To see a list of connected devices and their associated ports/VLANs: If the modem fully boots and contacts the

Do this on a or a device you own outright. If you rent the F6640 from your ISP, revert all changes via a factory reset ( reset button for 30 seconds) before returning it.

After accessing the router via Telnet, you can execute various commands to configure and monitor the device. Here are some basic ones: