Establishing a wireless connection between two remote points often becomes the only solution when laying cables is physically impossible or economically impractical. Bridge mode allows you to connect two routers, expand your network coverage area, or provide internet access to a device that does not have a built-in WiFi module. Model D-Link DIR-620SDespite its budget price and entry-level positioning, the D-Link router offers sufficient functionality for WDS scenarios or client mode connections. However, the D-Link firmware interface has its own quirks that can confuse inexperienced users during their first configuration attempt.
Before you start changing the parameters, you need to clearly understand the architecture of your future network. You can use DIR-620S As an access point, which connects to the main router via a cable and broadcasts the signal, or by using its radio module to receive the signal from another wireless device. The second option requires more detailed configuration, as encryption protocols and MAC addresses come into play here. It is critical that both devices operate on the same frequency band (usually 2.4 GHz for this model) and use the same WPA2-PSK encryption type. Errors at this stage result in the devices "seeing" each other, but no data transfer occurs.
In this article, we'll cover in detail the process of switching your router to bridge mode, setting up static IP addresses, and testing the link's stability. We'll also cover the nuances of working with different firmware versions, as the menu layout may have changed depending on the device's year of manufacture. We'll also cover security issues, as open bridges are a potential security hole for your local network. Be prepared to work in a web interface, where each step must be performed sequentially.
⚠️ Attention: Before starting the setup, it is highly recommended to reset the router settings. D-Link DIR-620S Reset the bridge to factory defaults. This is done through the reset button on the rear panel (press and hold for 10 seconds while the power is on). Residual configurations from previous owners or providers may conflict with the new bridge settings, causing unpredictable connection interruptions.
Equipment preparation and compatibility testing
The first step is a physical connection and initial diagnostics. Connect your computer to the router's LAN port. DIR-620S Using a patch cord. Make sure your computer's network card is set to obtain an IP address automatically. By default, the router has an address of 192.168.0.1, but if you're configuring it as part of an existing network, this address may need to be changed to avoid conflicts. Access the web interface through a browser using the standard address.
It's important to ensure that your router model supports the required operating mode. D-Link often has devices with the same model name but different hardware (revisions A, B, C1, S, etc.). Model DIR-620S This is a simplified version, and in some firmware versions, WDS (Wireless Distribution System) functionality may be limited or hidden. Check the firmware version in the "System Information" section and, if necessary, update it to the latest version from the manufacturer's official website, as older versions may contain bugs in the wireless module.
If you plan to connect a D-Link router to a device from another brand in bridge mode, make sure the main router supports WDS standards or universal repeater mode. Not all manufacturers implement these protocols identically, and sometimes you'll have to use Client mode if WDS doesn't work. For bridging to work, both devices must be on the same channel or have dynamic channel switching capabilities, although for static connections, manually assigning the channel is better.
Basic network and LAN settings
Before proceeding to wireless settings, you need to correctly configure the local network of the router itself. If DIR-620S If the secondary device (receiving the signal) will act as a secondary device, its IP address should be in the same subnet as the main router, but not the same. For example, if the main router has an address of 192.168.1.1, it's better to assign the D-Link an address of 192.168.1.2 or 192.168.1.254. This will allow you to easily manage both devices in the future.
Go to the menu Network Settings → LANHere you'll need to change the device's IP address. DHCP server settings are often also found in this section. In bridge or client mode, the DHCP server on the secondary router must be disabled. Only the main router should distribute addresses; otherwise, a conflict will arise in the network, and devices will not be able to obtain the correct network parameters for internet access.
After changing the IP address, the router will prompt you to reboot or reconnect. You'll need to enter the new address in your browser to continue setup. Don't skip this step, as having two DHCP servers running on the same network is the most common cause of connection issues for new devices. Make sure the subnet mask is set to 255.255.255.0, which is standard for home networks.
☑️ Checking LAN settings
Wireless WDS Configuration
WDS mode allows you to combine multiple wireless networks into a single logical structure. To configure this, go to the section WiFi → Basic Settings (or Wireless Settings). In the "Wireless Mode" field, select the value WDS or Access Point + WDS, if the device also needs to distribute a signal to its clients. In some D-Link firmware, this mode may be called "Bridge."
The key here is to specify the MAC address of the remote device. A field for entering the MAC address of the main router will appear in the WDS settings menu. You need to know the exact MAC address of the wireless interface (WLAN MAC) of the device you are connecting to. The address is usually written on a sticker on the bottom of the router or listed in the status section of its web interface. Enter the address carefully, with or without colons, depending on the format required by the D-Link interface.
Don't forget to set the wireless network channel. In bridge mode, automatic channel selection (Auto) often doesn't work correctly, as devices may lose connection when trying to switch to a different channel. Manually set the channel (e.g., 1, 6, or 11) that is least congested by neighbors, and enter same meaning on both routers. The channel width should also be identical; 20 MHz is usually recommended for maximum stability and range, or 20/40 MHz if the airwaves are clear.
⚠️ Attention: When setting up WDS, the wireless connection speed may drop to 50% of the theoretical maximum, as the radio module is forced to spend time exchanging service packets between access points. For speed-critical applications, consider a wired connection or using mesh systems, if your router model supports them.
Setting up security and encryption
Bridge mode security isn't just a recommendation, it's a necessity. An open bridge allows anyone within range of your antennas to connect to your network. Go to the section WiFi → Security SettingsSelect the network authentication type. WPA-PSK/WPA2-PSK mixed or strictly WPA2-PSKUsing legacy WEP or Open network is not allowed.
A key point that is often forgotten is that security settings must be absolutely identical on both ends of the bridge. This applies not only to the password, but also to the encryption algorithm (AES or TKIP). If the main router uses WPA2-AES, then DIR-620S You can't select WPA-TKIP; the connection simply won't be established. It's best to copy the password to the clipboard and paste it to avoid typos, as it's case-sensitive.
For additional security, you can use MAC address filtering to allow connections only to known devices. However, in WDS mode, this is achieved by binding the MAC addresses of the access points to each other, which we already did in the previous step. Make sure WPS (Wi-Fi Protected Setup) is disabled, as it can create vulnerabilities and sometimes conflict with manual bridge settings.
Why doesn't WPA3 work in a bridge?
The WPA3 protocol requires support from both devices and is often incompatible with WDS mode on older hardware. The D-Link DIR-620S router is an 802.11n device and does not physically support modern WPA3 encryption standards. Use WPA2-AES for maximum compatibility.
Comparison of wireless network operating modes
Users often confuse operating modes, making it impossible to set up a connection. The D-Link interface uses various names. Understanding the differences will help you choose the right connection strategy for your needs. Below is a table comparing the main modes.
| Opening hours | Description | Do you need a cable? | Speed |
|---|---|---|---|
| Access point (AP) | Distributes WiFi, connected by cable to the main router | Yes (WAN/LAN) | 100% (not cut) |
| WDS (Bridge) | Connects two routers over the air, expands the network | No | Decreases (~50%) |
| Client | The router connects to WiFi as a device and distributes it via cable. | No (at the entrance) | Depends on the signal |
| Repeater | Copies the network name (SSID) and expands the range | No | It is decreasing sharply |
For the model DIR-620S The most stable wireless bridging option is WDS mode or the specific "Client" mode if your goal is to connect a single device (such as a Smart TV or set-top box) to WiFi via the router's LAN port. Repeater mode on older D-Link firmware may be unstable, creating connection loops.
If your scenario involves transferring large amounts of data (video surveillance, file server), try to use a cable to connect the routers (Access Point mode). The 2.4 GHz radio channel used by the DIR-620S is highly susceptible to interference from microwave ovens, Bluetooth devices, and neighboring networks, which can cause freezes in data transmission.
Diagnosis and solution of typical problems
After applying all the settings, you need to reboot both routers. Start with the main one, then turn on DIR-620SThe D-Link's wireless network indicator should be lit or blinking, indicating activity. If there's no connection, first check the logs (System Log) in the web interface. They may contain messages about association errors or encryption key mismatches.
A common problem is that routers "see" each other, but the internet doesn't work. Check if a static route is configured on the main router if the network is segmented, although this is rarely necessary in simple bridge mode. Make sure the IP address on the computer connected to the D-Link is obtained automatically and is in the correct range. Try pinging the main router's address from a computer connected to the secondary router.
If your connection speed is extremely slow, check the distance between your routers and if there are any physical obstacles. DIR-620S With its non-removable antennas, a clear line of sight or no more than one wall is desirable for high-speed operation. Also, try repositioning the antennas: if they're vertical, try rotating one horizontally to change the signal polarization.
⚠️ Attention: The interface and menu layout may vary depending on the hardware revision (C1, S, etc.) and the installed firmware version. If you don't see the described options, check the official documentation for your specific device version on the manufacturer's website, as functionality may be limited in certain regional software versions.
Is it possible to set up a bridge if the main router is not a D-Link?
Yes, you can. WDS mode is standardized, but its implementation may vary. The key is to match the channel, encryption type (WPA2-AES), and password. However, some manufacturers (such as TP-Link or Asus) may use proprietary WDS extensions that are not recognized by D-Link devices. In this case, try "Client" mode on the DIR-620S or update the firmware of both devices.
How many D-Link devices can be connected together in a bridge?
The DIR-620S, like most home routers, allows for point-to-point (one-to-one) or point-to-multipoint (one master and several clients) connections. However, in WDS mode, the number of connected remote access points is often software-limited (usually up to four), and network performance is shared among all participants.
Why does WiFi disappear after setting up a bridge?
This may be due to an IP address conflict if DHCP is enabled on both routers. Mismatched regional settings (Country) may also be the cause. Make sure the same region is selected in the basic WiFi settings on both devices, as this affects the available channel list and signal strength.