DIR-859 User Manual

The DIR-859 is a high-performance AC1750 Wi-Fi router with dual-band technology, Gigabit Ethernet ports, advanced security features, and easy setup capabilities. This router delivers fast wireless speeds up to 1750Mbps, supports multiple devices simultaneously, and includes features like parental controls, guest network, and quality of service (QoS) management. Below are key sections for setup, configuration, features, and troubleshooting.

Features at a Glance

Key components: Dual-band AC1750 Wi-Fi, 4 Gigabit LAN ports, 1 Gigabit WAN port, USB 2.0 port, WPS button, Reset button, Power connector.

Feature	Description
Dual-band Wi-Fi	2.4GHz (450Mbps) and 5GHz (1300Mbps) simultaneous operation
Gigabit Ethernet ports	4 LAN ports for wired connections
Gigabit WAN port	For internet connection from modem
USB 2.0 port	For network storage and printer sharing
WPS button	For easy wireless device pairing
Reset button	Factory reset functionality
Power connector	For power adapter connection
LED indicators	Power, Internet, Wi-Fi, LAN port status
Advanced QoS	Traffic prioritization for better performance
Guest network	Separate Wi-Fi for visitors

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 wired devices: Use LAN ports for computers, gaming consoles, etc.
3. Power on router: Connect power adapter and plug into outlet.
4. Wait for initialization: Allow 1-2 minutes for router to boot up.

WARNING! Ensure proper ventilation; do not block vents. Keep away from heat sources.

First-Time Setup

Access web interface for initial configuration.

1. Connect to router: Use Wi-Fi or Ethernet cable to connect.
2. Open browser: Navigate to http://dlinkrouter.local or 192.168.0.1
3. Run setup wizard: Follow on-screen instructions for internet setup.
4. Configure wireless: Set SSID and password for 2.4GHz and 5GHz bands.
5. Set admin password: Create secure administrator password.

CAUTION! Record your settings and passwords in a secure location.

Specifications

• Wireless Standards: 802.11ac/n/g/b/a
• Wi-Fi Speed: AC1750 (450Mbps + 1300Mbps)
• Ethernet Ports: 4 x Gigabit LAN, 1 x Gigabit WAN
• USB Port: USB 2.0 for storage and printer
• Antennas: 4 external adjustable antennas
• Security: WPA/WPA2, firewall, parental controls
• Power Source: 12V DC, 1.5A power adapter
• Operating Temp: 0°C to 40°C (32°F to 104°F)

Controls and Settings

Access web interface via browser. Physical buttons: Power, WPS, Reset.

Web Interface Sections: Internet Setup, Wireless Settings, Network Settings, Advanced, Tools.

Wireless: SSID, security type (WPA2 recommended), channel selection, band steering. Network: DHCP settings, static IP assignment, port forwarding. Advanced: QoS, firewall rules, VPN setup. Tools: Firmware update, backup/restore, system log.

Connecting Devices

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

1. Wired connection: Connect device to any LAN port with Ethernet cable.
2. Wireless connection: Select your SSID from available networks and enter password.
3. WPS connection: Press WPS button on router, then activate WPS on device within 2 minutes.
4. USB devices: Connect storage or printer to USB port for network sharing.

Tip: For best performance, connect gaming consoles and streaming devices via Ethernet.

Wireless Configuration

Dual-band operation with separate 2.4GHz and 5GHz networks.

1. Access wireless settings: Log into web interface and navigate to Wireless section.
2. Configure 2.4GHz: Set SSID, security (WPA2-Personal), and password.
3. Configure 5GHz: Set different SSID or enable band steering.
4. Channel selection: Auto or manual channel selection to avoid interference.
5. Guest network: Enable separate guest network with limited access.
6. Wireless schedule: Set times when wireless is active/inactive.

WARNING! Use strong passwords and WPA2 security to protect your network.

Security Features

Firewall: SPI firewall enabled by default. Parental Controls: Block websites and set time limits. Guest Network: Isolated network for visitors. MAC Filtering: Allow/block specific devices.

Maintenance & Updates

Regularly check for firmware updates. Backup configuration before changes.

CAUTION! Do not interrupt power during firmware updates. Keep router firmware current for security.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 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	WAN connection/modem	Check WAN cable; restart modem and router; verify ISP status.
Slow Wi-Fi speed	Interference/distance	Change wireless channel; move closer to router; reduce interference sources.
Cannot access web interface	IP address/connection	Verify device IP; use correct URL (192.168.0.1); try different browser.
Devices cannot connect	Password/SSID	Verify correct password; check if SSID broadcast is enabled.
USB devices not recognized	Format/compatibility	Check supported formats; ensure proper file system (FAT32/NTFS).

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

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