How to Set Up a Guest Network for TP-Link Deco

Further Assistance

ΕνημερομέναApril 23, 2026

The Deco guest network lets visitors connect to the Internet without accessing resources on your main private network. When Deco works in Router mode, the guest and main networks are automatically isolated, keeping your home Wi-Fi and personal data secure.

Key Takeaways

The Deco guest network lets visitors use the Internet without accessing shared resources on the main network, protecting the security and privacy of your main Wi-Fi.
In Router mode, the Deco guest network and main network are automatically isolated. In AP mode, an "Allow Local Access" toggle controls whether the guest network can reach local resources.
The guest network can be customized with its own network name (SSID) and password, security type (WPA2, WPA/WPA2, WPA3,or None), working band (2.4 GHz, 5 GHz, or 6GHz), and optional bandwidth limits.
The Duration setting determines whether the guest network is active for 1 hour, 4 hours, 24 hours, or is always on. On the "Auto" setting, the guest network turns off automatically after about 10 minutes if no devices are connected.
The Share Wi-Fi feature lets you send the guest network SSID and password to a visitor directly from the Deco app.

A Guest network allows visitors in your home to use the internet without connecting to your private network. Wireless devices connected to a Guest network have no access to resources on the Main network, ensuring the security and privacy of the Main network.

Note:

When Deco works in the Router mode, the guest network and the main network are isolated.
When Deco works in the AP mode, on the Deco app > guest network > Advanced page, there is an "Allow Local Access" switch once the guest network is enabled, and it can be used to control whether to isolate the guest network and the Main network.
Features available in Deco may vary by model and software version. All steps and images described here are only examples and may not reflect your actual Deco experience.

Here we take Deco M5 as an example.

Step 1: Turn On Guest Network

Open the Deco app, go to More > Guest Network, then tap Turn On Guest Network.

Deco app More screen with Guest Network option highlighted and More tab highlighted in the bottom navigation bar. Deco app Guest Network introduction screen with Turn On Guest Network button highlighted.

Step 2: Set a Password

Create a password for the guest network, then click on Done.

Note: If you leave this field blank, the Guest network will not require a password to connect.

Deco app Guest Network Password screen with password field and Done button highlighted.

Step 3: Customize Your Deco guest network Settings

On the Deco guest network settings page, you can change the guest network SSID and password.

Deco app Guest Network settings screen with network name DecoM5T_Guest and password fields highlighted and Save button.

If you want to change the wireless security type, click on Security.

Deco app Guest Network settings screen with Security option set to WPA2 highlighted. Deco app Guest Network Security screen showing WPA2 selected with WPA/WPA2 and None options not selected.

The Duration feature allows you to choose how long to enable the Guest network.

Note: The Guest network turns off automatically if no devices are connected to it for about 10 minutes.

Some Deco models do not support this feature and will support it via firmware updates in the future.

Guest Network settings screen with Duration highlighted, showing network name DecoM5T_Guest and Guest Network toggle enabled. Duration options screen with Always selected, showing 1 hour, 4 hours, 24 hours, Always, and Auto.

Tap Advanced to select the Guest network's working band and limit the bandwidth allocated to it.

Guest Network settings screen with Advanced highlighted, showing network name DecoM5T_Guest and Guest Network toggle enabled. Advanced settings screen with Band highlighted, showing band set to 2.4 GHz and 5 GHz and Bandwidth Control off. Band selection screen with 2.4 GHz and 5 GHz selected, showing options for 2.4 GHz Only and 5 GHz Only.

Please tap Bandwidth if you want to limit the bandwidth allocated to the Guest network. After you set the bandwidth, please click on Done to save the settings.

Note: Some Deco models do not support this feature and will support it via firmware updates in the future.

Advanced settings screen with Bandwidth Control off and highlighted, showing band set to 2.4 GHz and 5 GHz. Bandwidth Control screen with Done highlighted, showing toggle enabled and download and upload bandwidth set to 100 Mbps.

Note: When Deco is in AP mode, there is an Allow Local Access switch on the Advanced page; when enabled, your guests can access your local network resources. Some Deco models do not support this feature and will support it via firmware updates in the future.

Advanced settings screen with Allow Local Access highlighted and toggle disabled.

Step 4: Save Your Settings

After completing the guest network setup, click Save to save the settings.

Guest Network settings screen with Save highlighted, showing network name DecoM5T_Guest and Guest Network toggle enabled.

Step 5: Share Wi-Fi

Tap Share Wi-Fi, then send the Deco guest network SSID and password to another person so they can connect to the Guest Network.

Note: Some models also support the Captive Portal feature, and these features available in Deco may vary by model and software version. With the Captive Portal feature configured on the Deco app, when wireless clients connect to the Deco network and try to access the internet, they will be directed to a preset web page that requires additional authentication information, see How to configure Captive Portal on Your Deco.