How to change the password on a D-Link DIR-620 Wi-Fi router

Changing the password on the router D-Link DIR-620 This is a basic but critical procedure for ensuring the security of your home network. Many users leave factory default settings, leaving them vulnerable to traffic interception or illegal internet use. Timely replacement of default data with unique ones is the first step to protecting your personal data.

The process for changing the security key on this model may vary depending on the firmware version installed by the manufacturer. Interface web configurator The interface has evolved, and it's important for users to understand which version of the software they're using. In this guide, we'll cover both interface versions in detail, ensuring it's useful for owners of all device models.

Even if you're not an experienced system administrator, anyone can handle this task. Just follow the instructions carefully and don't power off the router while updating the settings. Below is a complete breakdown of all the details of setting up a wireless network.

Preparing to set up a wireless network

Before making any changes to your router configuration, you must ensure a stable connection between your computer or smartphone and the device. DIR-620It's best to use a wired connection via a LAN cable, as changing the Wi-Fi password will disconnect your wireless network. If this isn't possible, make sure your device is connected to the router's current network.

You will also need your control panel login credentials. By default, most D-Link models use the login admin, and the password field remains blank. However, if you've previously changed this information and forgotten it, you'll need to perform a full factory reset, which will return all settings to their original state.

⚠️ Attention: If you change your password via Wi-Fi, be prepared for your phone or laptop to lose connection to the router immediately after saving the settings. You'll need to find the network again in the list of available networks and enter the new key.

Make sure your device is configured to obtain an IP address automatically (DHCP). In most cases, this is the default operating system setting, but if you have a static IP address, make sure it is on the same subnet as your router (usually 192.168.0.x). Without this, you simply won't be able to open the settings page.

For convenience, write down your new password on paper or in a secure password manager. The complex character combinations we recommend are difficult to remember the first time. Having a backup copy of your access data will save you from having to fiddle with the reset button the next time you log in.

Logging into the router's web interface

Open any modern browser (Chrome, Firefox, Opera) and enter your router's IP address in the address bar. The standard address for D-Link is 192.168.0.1, however, in some rare cases, providers may change it to 192.168.1.1 or another. Press Enter and wait for the authorization window to appear.

The system will ask for a username and password. Enter admin in both fields (or leave the password field blank if the interface is older). If the page doesn't load, check that the IP address you entered is correct and make sure the indicators on the front panel of the router are lit or blinking appropriately.

After successful authorization, you'll be taken to the main system status page. This displays the current uptime, firmware version, and WAN connection status. This is where you can begin changing your wireless network security settings.

Determining the interface and firmware version

Model DIR-620 D-Link has been in production for quite some time, and during this time, it has released numerous hardware and software revisions. This is visually reflected in the interface: it can be a classic gray (older versions) or a modern blue and white (newer versions, often called "green" or NRU). This determines the menu layout.

In older firmware versions, the menu is divided into tabs at the top: Status, Setup, Features, MaintenanceWe will need a section Setup, and then subsection WirelessIn the new interfaces, navigation is via a side menu or a top panel with icons, where you select "Wi-Fi" or "Wireless Network."

If you see your provider's logo (e.g., Rostelecom or Dom.ru), the interface may be limited. In this case, full functionality is often hidden in advanced settings or only accessible through the standard D-Link interface, which can be activated by updating the firmware.

How can I find out the exact firmware version?

Look at the sticker on the bottom of the router. It indicates the Hardware Version (e.g., A1, B1, D1) and Firmware Version. This information is crucial when searching for manuals or new software versions on the official website.

Knowing which version you have will save you time when searching for the menu item you need. Don't be afraid to experiment with the tabs, as an incorrect action in the Wi-Fi section (before saving) won't damage your router.

Changing your password in the classic interface

If your router has an older design, go to the tab Setup in the top menu, then select Wireless Setup on the left. Next, click the button Manual Wireless Connection Setup (Manual wireless connection setup). A page with the basic radio module settings will open.

Scroll down to the block Wireless Security ModeThis is where the field is located. Pre-Shared Key (Pre-Shared Key). Delete the old characters and enter a new password. It is recommended to choose a minimum of 8 characters, using mixed-case letters and numbers.

In the field Security Mode make sure the value is selected WPA2-Personal or WPA/WPA2Using outdated WEP encryption or an open network (None) makes your password virtually useless, as it can be intercepted in minutes using specialized utilities.

After entering the data, click the button Save Settings at the top of the screen. The router will apply the changes and may reboot the wireless module. From now on, all devices will need to connect with the new key.

⚠️ Attention: In older firmware, there is sometimes a bug where the password field does not accept special characters like # or &If the settings are not applied after saving, try using only letters and numbers.

Don't forget to also check if the option is enabled Enable Wireless (Enable wireless connection). If this box is unchecked, the router will stop broadcasting the signal, and you won't be able to connect via Wi-Fi until you connect via cable and turn the feature back on.

Setting up security in the new interface

In modern firmware versions, the interface has become more user-friendly. After logging in, find the section in the menu on the left or at the top Wi-Fi or the wireless network icon. Select a subsection Security settings (Security Settings).

Here you will see a field PSK encryption key (or simply Password). Enter a new character combination there. Pay attention to the drop-down list. Network authenticationFor maximum protection, select WPA2-PSKIf you have very old devices (such as last-generation game consoles), you may need to use mixed compatibility mode.

Some versions of D-Link software include a WPS feature. This allows you to connect by pressing a button, but it's vulnerable from a security standpoint. In this section, we recommend finding the option WPS and transfer it to a state Off (Disabled) to prevent the possibility of PIN code guessing by intruders.

After making changes, be sure to click the button Change or Save at the bottom of the page. The interface may prompt you to restart your device. Accept this action for the changes to take effect.

Interestingly, new D-Link firmware often includes a guest network feature. You can create a separate SSID with a different password for guests, preventing them from accessing your primary files and smart home devices. This can be done in the adjacent menu tab.

Recommendations for creating a strong password

The security of your network is directly dependent on the complexity of your password. Simple combinations like 12345678, password or birth dates can be hacked using brute-force methods in a matter of seconds, even on weak equipment.

An ideal Wi-Fi password should be at least 12 characters long. Use a combination of uppercase and lowercase Latin letters, numbers, and special characters (if your router supports them). Avoid using dictionary words, pet names, or keyboard sequences.

Critically important: never use the same password for your Wi-Fi and your router admin panel. If an attacker gains access to your wireless network, they can easily change your router settings if the passwords are the same.

You can use specialized online services or password managers to generate complex passwords. Write the generated key down in a safe place. Remember that it's impossible to recover a forgotten Wi-Fi password through your router—you can only reset it or view it in the settings if you already have access.

It's also worth considering the human factor. Don't share your password with strangers or write it down in plain sight. If you provide Wi-Fi to guests, it's best to use a guest network or change the password after they leave if access was temporary.

Solution and reset

Sometimes, after changing the password, devices refuse to connect, displaying an "Incorrect Password" error or endlessly attempting to obtain an IP address. In this case, on the client device (phone, laptop), find your network, select "Forget Network," and re-enter the password. Old saved profiles may conflict with the new security settings.

If you've forgotten your admin or Wi-Fi password and can't access the settings, your only option is a hard reset. On the back of the router DIR-620 There is a small hole with an inscription Reset.

To reset the router, turn on the hole, locate it, and press it with a thin object (such as a paperclip or needle). Hold the button for about 10-15 seconds until the indicators flash simultaneously. The router will then reboot to factory settings.

⚠️ Attention: A full reset will delete not only your Wi-Fi password but also all provider settings (PPPoE, L2TP, VLAN). You'll have to re-enter your contract details to access the internet.

After the reset, use the information from the sticker on the bottom of the device to sign in. The default Wi-Fi password (if set at the factory) will also be listed there, or the network will be open until the first setup.

In rare cases, the problem may be a stuck configuration. If resetting doesn't help, you may need to reflash the device with the latest firmware from the official D-Link website, as older versions may contain bugs.

Is it possible to change the password through the app on the phone?

Older DIR-620 models typically don't have an official D-Link mobile app. Management is only possible through a web interface in a browser. However, if the router has custom firmware or is provided by a provider with their app, this feature may be available.

What to do if the page 192.168.0.1 does not open?

Check that the LAN cable is connected and the corresponding indicator is lit. Ensure that your computer's IP address is in the same subnet (e.g., 192.168.0.5). Try disabling any antivirus or firewall software that may be blocking local pages.

Does changing your password affect your internet speed?

Changing the password itself doesn't affect speed. However, the encryption type you choose does. WPA2 provides good speed and security. WPA3 is even more secure, but older devices may not support it. WEP significantly reduces speed and security and should not be used.

How often should I change my Wi-Fi password?

It's recommended to change your password every 6-12 months or if you suspect unauthorized access. You should also change your password after leaving any residents or employees who had access to the network.