The Wi-Fi coverage of the 2.4GHz band is much greater that of the 5GHz band. However, the 2.4GHz band is usually more crowded than the 5GHz band and is more likely to be affected by interference from neighboring access points. On the other hand, the 5GHz band is more easily affected by physical objects such as furniture, walls, and buildings etc.
The new Mesh feature available in the latest firmware now supports Wireless uplink/downlink band options. This flexibility allows you to select the most suitable Wi-Fi band (2.4GHz/5GHz) for the Wi-Fi Mesh network.
Note: The options available vary for different models. For example, the VigorAP920 can establish the Mesh network by using either 2.4GHz and 5GHz bands but the VigorAP903 can only use the 5GHz band.
When the VigorAP is in Mesh Root mode, you can choose the required downlink band.
When the VigorAP is in Mesh Node mode you can choose the required uplink/downlink bands.
You will need to ensure the Mesh Node's specified uplink should match Mesh Root's downlink setting.
After establishing the Mesh network, you can see the Wireless Downlink Band setting in Mesh>> Mesh Status menu page.
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