DWS-4026 - Controller D-LINK - Free user manual and instructions
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| Product Type | Wireless LAN Controller |
| Model | DWS-4026 |
| Brand | D-Link |
| Dimensions (W x D x H) | 440 x 300 x 44 mm (19-inch rackmount, 1U) |
| Weight | Approximately 4.5 kg |
| Power Supply | AC 100-240V, 50/60Hz, internal redundant power supply |
| Power Consumption | Max 60W |
| Ports | 24 x 10/100/1000 Mbps PoE+ ports, 2 x 10G SFP+ uplink ports, 1 x Console port |
| Management | Web GUI, CLI (SSH/Console), SNMP, D-Link AP Manager |
| Wireless Protocols | IEEE 802.11a/b/g/n/ac Wave 2 |
| Maximum Managed APs | Up to 40 access points |
| Security | WPA/WPA2-Enterprise, MAC filtering, rogue AP detection, captive portal |
| VLAN Support | 802.1Q VLAN, up to 4096 VLANs |
| Quality of Service | 802.1p, DSCP, bandwidth control, per-AP/SSID QoS |
| Certifications | FCC, CE, UL, RoHS |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
| Humidity | 10% to 90% non-condensing |
| Cleaning | Use a dry cloth; avoid liquids or sprays. Power off before cleaning. |
| Spare Parts / Repairability | Contact D-Link support for spare parts. The device is not user-serviceable. |
Frequently Asked Questions - DWS-4026 D-LINK
How do I access the web interface of the DWS-4026?
By default, the controller's IP address is 10.90.90.91. Connect via Ethernet and set your PC to a static IP in the 10.90.90.x subnet. Open a web browser and enter the IP. Use admin as username and leave password blank (or default as 'admin').
What should I do if I forget the admin password?
You will need to perform a factory reset by pressing the reset button on the front panel for 10 seconds while the device is powered on. This will restore defaults including the IP address and password.
How many access points can the DWS-4026 manage?
The DWS-4026 can manage up to 40 access points with a recommended maximum of 30 for optimal performance. It also supports clustering to scale beyond that.
Can I use third-party access points with this controller?
No, the DWS-4026 is designed to work exclusively with D-Link access points running D-Link's managed AP firmware. It uses proprietary protocols for control and management.
How do I update the firmware on the DWS-4026?
Download the latest firmware from D-Link's support site. Access the web GUI, go to System Tools > Firmware Upgrade, select the file, and initiate the upgrade. The device will reboot automatically.
What does the PoE budget mean?
The DWS-4026 provides a total PoE budget of 370W across its 24 PoE+ ports. Each port can supply up to 30W, allowing you to power access points and other PoE devices directly.
How can I reset the controller to factory settings?
Press and hold the Reset button (located on the front panel) for about 10 seconds using a paperclip. The device will reboot with factory default settings. Note that all configurations will be lost.
What kind of redundancy does the DWS-4026 support?
The DWS-4026 supports controller redundancy through a hot standby mode. You can deploy a secondary controller that takes over if the primary fails, ensuring minimal downtime.
Why are my access points not connecting to the controller?
Check that the APs are on the same VLAN/subnet and that the controller's IP is reachable. Ensure the APs are set to discover the controller via DHCP option 60 or by specifying the controller IP manually. Also verify that the controller is not in license-limit mode.
Can I manage the controller via CLI?
Yes, the DWS-4026 provides a CLI accessed via SSH (default port 22) or through the console port (RJ-45, 115200 baud). Use commands like
show running-config and configure terminal for management.User questions about DWS-4026 D-LINK
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