Extending wireless network coverage is a common challenge faced by owners of large apartments or country houses. A standard router, even a modern one, isn't always capable of penetrating thick concrete walls or providing a stable signal in distant rooms. In such situations, an older but time-tested router, such as this popular model, comes to the rescue. D-Link DIR-620Using this device as a second node allows you to avoid running unnecessary cables throughout the entire apartment.
There are several ways to integrate this equipment into your existing infrastructure. You can configure it as an access point if you can run a wire, or use wireless bridging (WDS) mode for an over-the-air connection. The latter option is especially useful when a physical connection between buildings or rooms is not possible. The key point Here is the correct configuration of IP addresses and disabling the DHCP server on the secondary device.
Before you begin setting up, you need to make sure that the firmware and hardware revisions are compatible. Model DIR-620 Network protocols have been released in many versions (NRU, A1, C1, and others), and their interfaces may differ. However, the basic principles of network protocol operation remain unchanged. In this article, we'll discuss a universal workflow that's suitable for most situations requiring network expansion.
Preparing equipment and resetting settings
Any deep configuration of network equipment should begin with a clean slate. If the router was previously used by a provider or configured for other purposes, conflicting settings may have been stored in its memory. Full reset eliminates the possibility of errors associated with incorrect entries in the device configuration file.
To perform a reset, locate the button on the back panel ResetIt's usually recessed into the case to prevent accidental pressing. You'll need a thin object, such as a straightened paperclip or toothpick. Press and hold the button for 10-15 seconds while the device is powered on. The indicators on the front panel should flash or go out, indicating the factory reset process has begun.
⚠️ Caution: Do not power off the router during the reset process. Interrupting the factory firmware flashing process may cause irreversible damage to the firmware, requiring the device to be re-flashed via the console cable.
After the device reboots, it will be ready for initial configuration. Connect your computer or laptop to any LAN port on the router. D-Link Using a network cable. Don't connect the WAN cable from your main provider yet; we'll only be working with the local network for setup.
☑️ Preparing to set up the DIR-620
Login to the web interface and update the firmware
The router's settings are managed using a built-in web interface. Open any browser and enter the device's default address in the address bar. For most models D-Link This 192.168.0.1 or 192.168.1.1The exact address, login, and default password are indicated on the sticker located on the bottom of the case.
After authorization (standard data is most often admin / admin) you'll be taken to the control panel. The first thing you need to do before starting complex manipulations is check the software version. Current firmware Ensures stable operation of the WiFi module and fixes known security vulnerabilities.
| Parameter | Default value | Recommended action |
|---|---|---|
| IP address | 192.168.0.1 | Check the sticker |
| Login | admin | Change after setup |
| Password | admin | Set up complex |
| SSID (Network Name) | DIR-620_XXXX | Rename |
Find the "System Tools" or "Maintenance" section and select "Firmware Update." If you have a new firmware file downloaded from the manufacturer's official website, upload it using the "Browse" button and click "Update." The process will take a few minutes, after which the router will reboot.
What should I do if the web interface doesn't open?
If the page isn't loading, check your network adapter's TCP/IP settings. They should be set to "Obtain an IP address automatically." Also, try clearing your browser's cache or using incognito mode. Sometimes setting a static IP address on your computer can help: 192.168.0.2, mask 255.255.255.0.
Setting the operating mode: Access Point or Client
To D-Link DIR-620 To work in conjunction with another router, you need to determine its role. If you plan to connect them via cable, select "Access Point" mode. In this case, the DIR-620 simply broadcasts the signal received via the cable. If the connection is wireless, select "Client" or "WDS" mode.
In new firmware versions Clique or Green These settings are located in the "Mode" menu. Select the desired option from the list. For wireless network expansion, "Client" mode is often used. This allows the router to connect to an external WiFi network like a regular device (laptop or phone) and share that internet connection.
It's important to understand the difference between the modes. Access point mode with a wired connection provides maximum speed and stability. Wireless mode (client/bridge) always introduces latency and reduces the actual channel throughput by approximately half, as the radio module simultaneously receives and transmits data.
Wireless network configuration and security
Let's move on to configuring WiFi settings. Find the "Wireless" or "WiFi" section. Here, you need to set the network name (SSID). If you want devices to automatically switch between routers (roaming), the name and password must match the primary router. However, for ease of diagnostics, it's best to give it a unique name for now, for example, DIR620_Ext.
Pay special attention to security settings. Encryption protocol must be set to value WPA2-PSK (or WPA3, if your hardware supports it). Using legacy WEP or an open network is unacceptable, as it makes your data vulnerable to interception.
Select a wireless network channel. For the 2.4 GHz band, channels 1, 6, and 11 are optimal because they don't overlap. If the main router operates on channel 6, it's best to assign the second device to channel 1 or 11 to minimize signal interference.
⚠️ Note: Firmware interfaces may vary depending on the year of manufacture of the device and the regional version. If you don't see the described items, check the exact model on the sticker and refer to the manufacturer's documentation for your revision.
Configuring LAN and disabling the DHCP server
This is the most critical configuration step. When two routers operate on the same network, IP address conflicts are inevitable unless the default settings are changed. By default, both devices have the address 192.168.0.1You need to change your IP address. D-Link DIR-620 to a free address in the subnet of the main router.
For example, if the main router has the address 192.168.0.1, then DIR-620 needs to be assigned an address 192.168.0.2 or 192.168.0.254After changing the IP address and saving the settings, access to the DIR-620 web interface will be via the new address. Don't forget to reconnect.
The next step is to disable the DHCP server. There should only be one router on the network that distributes IP addresses (the primary router). Find the section LAN or Network Settings and uncheck "Enable DHCP Server." If you don't do this, devices will receive incorrect gateway settings and lose internet access.
Example of correct LAN configuration for DIR-620:IP Address: 192.168.0.250
Subnet Mask: 255.255.255.0
Gateway: 192.168.0.1 (IP of the main router)
DHCP Server: Disabled
Connecting to the main WiFi network (Client mode)
If you've selected a wireless connection, proceed to searching for your primary network. In the WiFi settings menu, find "Client Mode" or "Site Survey." Click "Search" or "Scan" to see a list of available networks in the area.
In the list that appears, select the SSID of your main router. The system will ask you to enter a security key (Wi-Fi password). Make sure the password is entered correctly, including capitalization. After applying the settings, the router will attempt to establish a connection.
You can check the connection status on the main page of the web interface or in the WAN status. If the connection is established successfully, the indicators should indicate a connection. Now D-Link DIR-620 receives Internet over the air and distributes it through its LAN ports and its WiFi module.
- 📡 Make sure that the DIR-620 is within the range of the main router's signal strength.
- 🔐 The password for the main network must match the encryption type (WPA2).
- 🔄 After configuring client mode, access to the DIR-620 can only be achieved via the new IP address it received from the main router, or via a static IP address if the firmware allows it.
Performance testing and diagnostics
Once all settings are complete, you need to check the results. Connect your smartphone or laptop to the network that is now being shared. D-LinkTry opening several websites and check the download speed using speed testing services (Speedtest).
Pay attention to your ping. When connecting wirelessly via a bridge, the latency (ping) to the gateway will be higher than with a direct connection. This is normal. However, if packets are being lost (request timed out), check the distance between the routers and the presence of interference (microwaves, high-power electrical appliances).
If the internet isn't working, check the following chain: Device -> DIR-620 -> Main Router -> ISP. Make sure your computer has received an IP address within the range of the main router, and that the gateway is set to the main router, not the DIR-620.
Frequently Asked Questions (FAQ)
Is it possible to connect two D-Link DIR-620 routers together?
Yes, this is possible. One router is configured as an access point (or in WDS Master mode), and the other as a client (or WDS Slave). It's important that they operate on the same channel and have the same security settings.
Why did the internet disappear on all devices after setup?
Most likely, there's an IP address conflict or two DHCP servers running. Check that DHCP is disabled on the DIR-620 and that its IP address is different from the main router's address but in the same subnet.
What is the maximum speed in client mode?
In wireless client mode, actual speeds rarely exceed 20-30 Mbps, even with a 100 Mbps plan, as the channel is split in half for receiving and transmitting. For higher speeds, use a wired connection.
Do I need to flash the DIR-620 before setting it up?
Recommended. Factory firmware may contain bugs in the wireless module. Updating to the latest official version improves connection stability.