When your internet slows down, the problem isn't always the infrastructure or your package. A device connected to your network without permission both shares your speed and poses a risk to your personal data. That's why changing your modem password is one of the most basic security steps you should take regularly for both home and business connections.
First, it's important to distinguish between two different passwords: the Wi-Fi password lets devices connect to the wireless network, while the modem admin panel password protects access to the modem settings. For a secure connection, neither should be left at its default value.
Why is changing your modem password necessary?
Modems often run with a network name and password that come preset at installation. This information may be printed on the modem label or be easy to guess. If the password has previously been shared with neighbors, guests or former employees, it becomes hard to keep track of who has access to your network.
Unauthorized access doesn't just mean a slower connection. It can lead to more serious consequences, such as attempts to access other devices on your network, generating malware traffic or using your connection for illegal purposes. Remote workers, families using smart home devices and small businesses handling customer information in particular should be more careful about this.
Renewing your password at regular intervals is a good habit. There's no single right interval. If only your household uses the network, changing it every six months may be enough. If you share the password often, manage an office network or notice suspicious slowdowns, it's better to change it right away.
How do you change your Wi-Fi password?
Although brands and models differ, the process is similar on most modems. If possible, connect your computer to the modem with an Ethernet cable while making the change. You can also do it over a wireless connection; however, as soon as you save the new password, your phone, computer and other devices will be disconnected.
1. Log in to the modem admin panel
Type your modem's local address into your browser. Common addresses are 192.168.1.1 and 192.168.2.1. Some modems may use a different address; you can find the correct information on the label under the modem or in the setup documentation.
On the screen that opens, you'll be asked for the admin username and password. This information is also usually on the device label. If you've changed the admin panel password before, use your current credentials. If you can't log in, first check uppercase and lowercase letters and delete any old password your browser autofills.
2. Find the wireless network settings
In the admin panel, look for a menu titled "Wireless", "Wi-Fi", "WLAN" or "Kablosuz". On dual-band modems, the 2.4 GHz and 5 GHz networks may be shown in separate sections. 2.4 GHz offers wider coverage, while 5 GHz can provide higher speeds and less interference for devices close to the modem.
If both bands are active, update the password for both networks. Using the same password makes managing devices easier. On the other hand, using different passwords can help you control more precisely which device connects to which band. For home use convenience may come first, while for small businesses access control may be the priority.
3. Set a strong new password
Enter the new password in the relevant field and save the settings. The modem may restart the wireless network within a few seconds. You will then need to enter the new password on your phone, TV, game console, printer and other connected devices.
A strong password isn't just text that looks complicated; it must be hard to guess and long enough. Use at least 12 characters. Combine uppercase and lowercase letters, numbers and special characters. Avoid easily guessed phrases such as your name, date of birth, phone number, address or "12345678".
To make it memorable, you can combine several unrelated words with symbols and numbers. For example, create a long password that means something to you but contains no real personal information. Rather than writing this password on the modem or anywhere others can see it, it's safer to store it in a trusted password manager.
Update the modem admin panel password too
Changing the Wi-Fi password isn't enough. If the admin panel password stays at its default, anyone who can access your network may try to change the modem settings. So find the "Administration", "Maintenance", "Management" or "System Tools" menu in the panel and update the admin password.
It's preferable for the admin password and the Wi-Fi password not to be the same. Using two separate strong passwords protects the other settings layer if one is shared or compromised. If you forget the admin password, you may lose access to the modem interface, so keep a secure note of it.
Some modems have a remote management option. If you don't need this feature, it's safer to keep it turned off. Accessing the modem panel over the internet can be convenient, but leaving it enabled unnecessarily increases the attack surface.
Check the security type
When changing your password, also check the wireless security type setting. Use WPA3 if possible. If your modem or older devices don't support WPA3, WPA2-PSK/AES is a suitable option. WEP and older WPA options are not sufficient for today's security needs.
If an older smart TV, printer or camera can't connect with the newer security type, check for a software update for the device instead of immediately switching back to weaker protection. If no update is available, creating a separate guest network for these devices may be a more balanced solution.
The WPS feature may seem convenient, but it also requires caution from a security standpoint. If you're not actively using this feature, which quickly connects devices via a PIN or button, it's better to turn it off.
When should you use a guest network?
You don't have to share your main Wi-Fi password with guests at home, your customers or short-term visitors to your office. If your modem supports it, enable a guest network. Give this network a separate name and a different password.
Blocking the guest network's access to devices on the main network better protects your computers, network printer, security cameras and smart home devices. This separation is especially useful for small businesses: when staff devices, business systems and visitor connections aren't on the same network, management becomes easier.
If there's no connection after changing the password
If your device won't connect after saving the new password, first "forget" the old Wi-Fi network on the device, then select the network again and enter the new password. If you also changed the network name, make sure you select the new network name instead of looking for the old one.
If you can't reach the admin panel at all, check that the modem and your device are connected to the same network. Make sure you haven't accidentally added a search term to the browser address. If necessary, turn off the modem, wait 20-30 seconds and restart it.
As a last resort, you can perform a factory reset. However, this may erase your internet username, connection settings, Wi-Fi name and all personal configurations. Especially for business connections or modems with custom settings, it's safer to get guidance from the support team before resetting. Tepenet customers can get help through technical support channels whenever they need assistance with connection and modem settings.
If you see unfamiliar devices on your network, experience unexpected speed drops or can't keep track of who you've shared your password with, don't put off changing it. A few minutes of checking your settings can protect the speed and security of your internet experience for a long time.
