dir-825/ac manual

The DIR-825/AC is a high-performance dual-band wireless AC router with advanced features including simultaneous 2.4GHz and 5GHz bands, Gigabit Ethernet ports, USB sharing, advanced security protocols, and robust management capabilities. Below are key sections covering setup, configuration, features, troubleshooting, and technical specifications.

Features at a Glance

Key components: Dual-band wireless AC technology, 4 Gigabit LAN ports, 1 Gigabit WAN port, USB 2.0 port, external antennas, web-based management interface.

Feature	Description
Wireless Standards	802.11a/b/g/n/ac dual-band
Ethernet Ports	4 x Gigabit LAN, 1 x Gigabit WAN
USB Port	USB 2.0 for storage and printer sharing
Antennas	2 external detachable antennas
Security	WPA/WPA2, firewall, VPN pass-through
Management	Web-based interface, mobile app support
QoS	Quality of Service for traffic prioritization
Guest Network	Separate guest wireless access
Parental Controls	Content filtering and access scheduling

Package Contents

Unpack and verify all components are present.

• DIR-825/AC Wireless Router
• Power Adapter
• Ethernet Cable
• 2 Detachable Antennas
• Quick Installation Guide
• Resource CD with Manual

NOTE: Contact support if any items are missing or damaged.

Hardware Installation

Follow these steps for initial hardware setup.

1. Connect antennas to router
2. Connect power adapter to router and wall outlet
3. Connect Ethernet cable from modem to WAN port
4. Connect computer to any LAN port
5. Power on router and wait for indicators to stabilize

WARNING! Use only provided power adapter. Ensure proper ventilation around router.

Web Interface Setup

Access router configuration through web browser.

1. Open web browser and enter http://dlinkrouter.local or 192.168.0.1
2. Enter admin for username (leave password blank first time)
3. Follow setup wizard for basic configuration
4. Set new admin password for security
5. Configure internet connection type (DHCP, PPPoE, Static)

CAUTION! Change default password immediately for security.

Wireless Configuration

Configure dual-band wireless settings.

• 2.4GHz Band: Set SSID, channel (auto recommended), security (WPA2)
• 5GHz Band: Set separate SSID, channel selection, security
• Guest Network: Enable separate guest access with limited privileges
• Wireless Mode: Select 802.11ac/n/g/b mixed mode

Tip: Use different SSIDs for 2.4GHz and 5GHz bands for easy identification.

Network Settings

Advanced network configuration options.

1. LAN Settings: Configure router IP address and DHCP server
2. WAN Settings: Set connection type and parameters
3. DNS Settings: Configure manual or automatic DNS
4. IPv6 Support: Enable IPv6 connectivity if needed
5. Port Forwarding: Set up for specific applications

Security Features

Comprehensive security settings for network protection.

Feature	Description
Firewall	SPI firewall with DoS protection
Wireless Security	WEP, WPA, WPA2 encryption
MAC Filtering	Allow/block specific devices
VPN Pass-through	PPTP, L2TP, IPSec VPN support
Parental Controls	Website filtering and access scheduling

USB Sharing

Share storage devices and printers via USB port.

1. Connect USB storage device or printer to router
2. Access USB settings in web interface
3. Configure shared folders and access permissions
4. Set up FTP server for remote access if needed
5. Configure printer sharing for network printing

NOTE: Format storage devices as FAT32 or NTFS for compatibility.

Advanced Settings

Additional configuration options for advanced users.

• Quality of Service (QoS): Prioritize traffic for specific applications
• Virtual Server: Port forwarding for specific services
• DMZ: Designate a DMZ host
• DDNS: Dynamic DNS service configuration
• System Log: View and manage router logs
• Firmware Update: Check and install latest firmware

Troubleshooting

Symptom	Possible Cause	Corrective Action
No internet connection	WAN cable/modem	Check WAN cable; restart modem and router; verify settings.
Wireless devices can't connect	Security settings/SSID	Verify SSID and password; check wireless mode compatibility.
Slow wireless speed	Interference/distance	Change wireless channel; reduce distance; check for interference.
USB device not recognized	Format/power	Ensure proper format (FAT32/NTFS); use powered hub if needed.
Can't access web interface	IP address/browser	Verify router IP; clear browser cache; try different browser.

Reset: Press and hold reset button for 10 seconds to restore factory defaults.

Specifications

• Wireless Standards: IEEE 802.11ac/n/g/b/a
• Frequency Bands: 2.4GHz & 5GHz simultaneous
• Ethernet Ports: 4 x Gigabit LAN, 1 x Gigabit WAN
• USB Port: 1 x USB 2.0
• Antennas: 2 x external detachable
• Security: WPA/WPA2, firewall, VPN pass-through
• Power Supply: 12V DC, 1.5A
• Operating Temp: 0°C to 40°C
• Dimensions: 6.3" x 7.64" x 1.3"