💡 For full VPN coverage, consider placing a dedicated VPN router behind the ZTE F680 (bridge mode) or using VPN software on each device.
: Use the admin credentials found on the sticker at the back of the router. Navigate to VPN Settings Application VPN Server from the side menu. Configure PPTP Enable VPN Server : Check the box to activate the service. Set Credentials : Define a for remote access. Client IP Range Configure VPN on ZTE F680
This is the most robust, professional solution. You turn the ZTE F680 into a "dumb modem" (bridge mode) and connect a second router that supports VPN clients (e.g., Asus, TP-Link, GL.iNet, or a Raspberry Pi with OpenWrt). 💡 For full VPN coverage, consider placing a
The ZTE F680 is a capable fiber modem but a poor VPN client. By understanding its limitations—passthrough yes, client no—you can choose the right workaround: a secondary VPN router (best), a shared PC connection (budget), or per-device apps (simple). Avoid bridge mode unless you have experience, and never attempt to flash custom firmware. Configure PPTP Enable VPN Server : Check the
Before diving into the technical configuration, it is important to understand the benefits of a router-level VPN setup:
This gives you a full, encrypted, always-on VPN for every single device on your network without touching the unreliable ZTE firmware.