DIR-879 User Manual

The DIR-879 is a high-performance AC1900 Wi-Fi router with dual-band technology, MU-MIMO support, four Gigabit Ethernet ports, USB 3.0 and 2.0 ports, advanced QoS, parental controls, guest network capabilities, and robust security features. Below are key sections for setup, features, configuration, troubleshooting, and specifications.

Features at a Glance

Key components: Dual-band AC1900 Wi-Fi, 4 Gigabit LAN ports, 1 Gigabit WAN port, USB 3.0 and 2.0 ports, MU-MIMO technology, advanced QoS, parental controls.

Feature	Description
Wireless Standards	802.11ac/n/g/b/a, Dual-band (2.4GHz & 5GHz)
Ethernet Ports	4 x Gigabit LAN, 1 x Gigabit WAN
USB Ports	1 x USB 3.0, 1 x USB 2.0
MU-MIMO	Multi-User Multiple Input Multiple Output
QoS	Quality of Service for prioritized traffic
Parental Controls	Website filtering and time scheduling
Guest Network	Separate network for visitors
WPS Button	Wi-Fi Protected Setup for easy connection
Reset Button	Factory reset functionality
Power Button	Turns router on/off

Installation

Unpack and inspect contents. Place in central location for optimal coverage.

1. Connect to modem: Use Ethernet cable from modem to WAN port.
2. Connect devices: Use LAN ports for wired connections to computers, gaming consoles, etc.
3. Connect USB devices: Attach storage devices or printers to USB ports.
4. Plug into AC power and turn on.

WARNING! Keep router in well-ventilated area; avoid heat sources and moisture.

First-Time Setup

Power on router; access web interface for configuration.

1. Connect to router: Use Wi-Fi or Ethernet cable to connect to router network.
2. Access setup: Open browser and navigate to http://dlinkrouter.local or 192.168.0.1
3. Run setup wizard: Follow on-screen instructions to configure internet connection.
4. Set wireless settings: Configure SSID, password, and security type.
5. Update firmware: Check for and install latest firmware updates.

CAUTION! Use strong passwords for Wi-Fi and admin access.

Specifications

• Wireless Speed: AC1900 (600Mbps @2.4GHz + 1300Mbps @5GHz)
• Antennas: 4 external high-gain antennas
• Processor: Dual-core processor
• Memory: 128MB Flash, 256MB RAM
• Ports: 4 x Gigabit LAN, 1 x Gigabit WAN, 2 x USB
• Security: WPA/WPA2, SPI firewall, VPN support
• Features: MU-MIMO, Smart Connect, QoS, Guest Network
• Power Source: 12V DC, 3A
• Operating Temp: 0°C to 40°C

Controls and Settings

Access web interface via browser. Front Panel: Power LED, Internet LED, Wi-Fi LED, LAN LEDs, USB LED.

Web Interface: Basic Settings, Wireless Settings, Network Settings, Advanced Features, Maintenance.

Wireless: SSID, Security (WPA2 recommended), Channel selection, Band steering. Network: DHCP settings, Static IP, Port forwarding. Advanced: QoS, Firewall, VPN, Parental Controls. Maintenance: Firmware update, Backup/restore, System reset.

Connecting Devices

Wired: Use Ethernet cables to LAN ports. Wireless: Connect to SSID with password.

1. Wired connection: Connect device directly to LAN port with Ethernet cable.
2. Wireless connection: Select router SSID from device Wi-Fi list and enter password.
3. WPS connection: Press WPS button on router and device within 2 minutes.
4. USB devices: Connect storage or printer to USB port for network sharing.

Tip: For best performance, place router in central location away from obstructions.

Advanced Features

Supports advanced networking capabilities for optimized performance.

1. Quality of Service (QoS): Prioritize gaming, streaming, or specific devices.
2. MU-MIMO: Simultaneous data streaming to multiple devices.
3. Guest Network: Create separate network for visitors with limited access.
4. Parental Controls: Block websites and set internet access schedules.
5. Port Forwarding: Configure for gaming servers or remote access.
6. VPN: Set up VPN server for secure remote access.
7. USB Sharing: Access files and printers over network.
8. Smart Connect: Automatically assign devices to optimal band.

WARNING! Configure advanced features carefully to maintain network security.

Security Features

Wireless Security: WPA/WPA2 encryption. Firewall: SPI firewall protection. Access Control: MAC address filtering. VPN: PPTP, L2TP, IPsec support.

Maintenance & Updates

Regularly check for firmware updates. Backup configuration settings.

CAUTION! Do not interrupt power during firmware updates; may cause permanent damage.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2024 D-Link Corporation; all rights reserved. For support, visit www.dlink.com or contact 1-877-453-5465.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No internet connection	Modem/WAN connection	Check modem status; verify WAN cable connection; reboot router.
Slow Wi-Fi speed	Interference/distance	Change wireless channel; move router to central location; reduce interference.
Can't access web interface	IP address/connection	Verify device IP; use correct URL (192.168.0.1); try different browser.
Device won't connect	Password/WPS	Verify correct password; try WPS connection; check device compatibility.
USB not recognized	Format/power	Ensure USB device is properly formatted; try different USB port.

Reset: Hold reset button for 10 seconds to restore factory defaults.

Service: 1-877-453-5465; www.dlink.com