why are there two Wi-Fi networks on some modems?

Some modem/routers generate two Wi-Fi networks – a 2.4GHz WiFi network and a 5GHz WiFi network.

Above Left: TP-Link Archer VR400 | Above Right: TP-Link Archer VR1600v

Above: NetComm NF18ACV

We highly recommend connecting most of your devices to the 5GHz Wi-Fi network as this has a much more powerful speed and should always be used when possible.

Below is a short explanation of the difference between the two Wi-Fi networks on the modem.

2.4GHz WiFi Advantages

• Compatible with most devices including older devices (such as desktop computers)
• Stronger signal over a longer range/distance

2.4GHz WiFi Disadvantages

• Much slower than the 5GHz network
• More interference as cordless handsets and other portable devices usually use the 2.4GHz frequency which can affect speeds
• Terrible in apartments or large unit blocks as interference is usually very high

5GHz WiFi Advantages

• Much faster than the 2.4GHz network
• Generally less interference from other devices than the 2.4GHz network

5GHz WiFi Disadvantages

• Shorter range/distance of signal than the 2.4GHz network
• Some older devices (such as desktop computers) will not pick up the 5GHz network