F670 Manual: Zte

Publication: ZTE F670 Manual — Beyond the Basics

Problem 4: USB Drive Not Showing on Network

• Fix:
  • Ensure the drive is formatted as FAT32 or NTFS (exFAT often fails).
  • Go to Application > USB Storage > Enable Samba.
  • Access via \\192.168.1.1 (Windows) or smb://192.168.1.1 (Mac).

How to Set Up Port Forwarding (For Gaming or CCTV)

The ZTE F670 has a built-in firewall (NAT). To allow external access to a game server, webcam, or NAS, you must forward ports.

1. Go to Application > Port Forwarding (or Advanced > NAT > Virtual Server).
2. Click Add or Create New.
3. Fill in:
   • Service Name: e.g., “Minecraft” (user-defined).
   • Protocol: TCP, UDP, or Both (check your app’s requirement).
   • WAN Port: External port (e.g., 25565).
   • LAN Port: Internal port (usually same as WAN port).
   • LAN IP Address: The static IP of your device (e.g., 192.168.1.50).
4. Save and reboot.

8. Factory Reset – The Nuclear Option

If everything fails, a factory reset restores all settings (including passwords). zte f670 manual

Steps:

1. Keep the device powered on.
2. Use a paperclip to press and hold the RESET pinhole (usually near the USB port).
3. Hold for 10–15 seconds until all LEDs blink rapidly.
4. Release – the F670 will reboot (takes 3–5 minutes).

After reset:

• IP = 192.168.1.1
• Login = admin/admin (or Zte521)
• All your custom Wi-Fi and port forwarding are gone.

2. Hardware and Interfaces

• Optical: SC/APC or SC/UPC single-fiber or dual-fiber GPON port (typical wavelength 1490nm/1310nm).
• Ethernet: 4× Gigabit RJ‑45 LAN ports (LAN1–LAN4); one often configurable as WAN.
• LAN/WAN: Some firmware variants allow VLAN tagging and LAN/WAN mode switching.
• USB: 1× USB 2.0 (for storage/printer sharing on some builds).
• POTS: 2× RJ‑11 ports for VoIP/analog telephony (FXS).
• Wi‑Fi: Dual-band (2.4 GHz + 5 GHz) with multiple SSIDs/guest SSID support on recent firmware.
• Indicators: Power, PON, LOS, LAN, WLAN, TEL status LEDs.
• Power: 12V DC adapter typical; may include battery backup in some models.

4. Initial Setup and Access

1. Connect fiber cable to the PON port (observe correct connector type and APC/UPC orientation).
2. Connect LAN1 to your PC for initial configuration (use a static IP in 192.168.1.x if needed).
3. Power on and wait for PON LED to stabilize (registration with OLT required).
4. Access web GUI: typically at 192.168.1.1 (default) via HTTP/HTTPS; default credentials often admin/admin or user/user — change immediately.
   • If web GUI unavailable, use TR-069 or vendor management systems (OLT side).

8. Security Best Practices (Lock Down Your Gateway)

A surprising number of ZTE F670 units are left with default passwords. Here’s a quick security checklist: Publication: ZTE F670 Manual — Beyond the Basics

1. Disable WPS – Go to WLAN > WPS Settings > Disable. WPS has known brute-force vulnerabilities.
2. Disable remote management – Go to Management > Access Control > Set “WAN Access” to Disable. This prevents anyone from logging into your router from the internet.
3. Update firmware – Go to Management > Firmware Upgrade. If no update shows, don’t manually upload unless your ISP provides a file – wrong firmware bricks the device.
4. Hide SSID (optional) – Under WLAN > SSID Settings, uncheck “Broadcast SSID”. This hides your network from casual scans (but determined hackers can still find it).

Front/Rear Panel Ports:

1. Power (12V DC): Connect the provided adapter.
2. Power On/Off Button: Rocker or push button.
3. PON/LOS LED: Critical for fiber connection.
4. LAN1–LAN4: Yellow or grey RJ45 jacks.
5. TEL1/TEL2: RJ11 phone jacks.
6. USB: For external storage or a 4G dongle (on supported firmware).
7. Reset (Pinhole): Recessed button for factory reset.
8. WPS/Wi-Fi Button: Press to turn Wi-Fi on/off; hold to activate WPS.