NBG6604 - Router ZYXEL - Free user manual and instructions
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| Product Type | Router |
| Brand | ZyXEL |
| Model | NBG6604 |
| Wireless Standard | IEEE 802.11b/g/n |
| Frequency Band | 2.4 GHz |
| Maximum Wireless Data Rate | 300 Mbps |
| Ethernet Ports | 4x LAN 10/100 Mbps, 1x WAN 10/100 Mbps |
| USB Port | 1x USB 2.0 |
| Firewall | SPI, DoS prevention |
| VPN Support | Pass-through (IPsec, PPTP, L2TP) |
| Dimensions (W x D x H) | 160 mm x 120 mm x 30 mm |
| Weight | 0.3 kg |
| Power Supply | 12V DC, 1A |
| Power Consumption | 8W (max) |
| Antenna Type | 2 external detachable antennas |
| LED Indicators | Power, WAN, LAN 1-4, WLAN, USB |
| Security | WEP, WPA, WPA2-PSK, WPA2-Enterprise |
| Management | Web-based GUI, firmware upgrade, backup/restore |
| Maintenance | Clean with dry cloth; avoid liquids and direct sunlight |
| Spare Parts | Power adapter, antennas (available separately) |
| Warranty | 2 years limited |
Frequently Asked Questions - NBG6604 ZYXEL
How do I reset the ZyXEL NBG6604 to factory defaults?
Press and hold the Reset button on the back panel for about 10 seconds using a paperclip until the power LED blinks. Release the button; the router will reboot with factory settings.
What is the default IP address to access the router settings?
The default IP address is 192.168.1.1. Enter it into a web browser to access the login page.
What are the default login credentials?
Default username is admin and password is 1234 (or blank on some models). Check the label on the router for exact details.
How do I change the Wi-Fi password?
Log into the web interface, go to Wireless > Security, and set a new WPA2-PSK passphrase. Click Apply to save.
Can I use the USB port for a printer or storage?
Yes, the USB 2.0 port supports sharing a USB printer or external storage drive across the network via Samba or FTP.
How do I update the firmware?
Download the latest firmware from ZyXEL's support site. Log into the web interface, go to Maintenance > Firmware Upgrade, select the file, and click Upload. Do not power off during the process.
What should I do if I forget my router password?
Perform a factory reset using the hardware button. This will erase all custom settings and restore defaults.
How can I improve Wi-Fi range?
Position the router centrally, away from obstructions and electronic interference. Adjust antennas vertically. Consider reducing channel width to 20 MHz for better range.
Does the NBG6604 support VPN?
Yes, it supports VPN pass-through for IPsec, PPTP, and L2TP tunnels. It does not act as a VPN server.
How do I enable guest Wi-Fi?
Log into the web interface, go to Wireless > Guest Network (or similar), enable it, and set a separate SSID and password for guests.
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