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The TP-Link Archer AX21 has a bunch of security features that can help keep your network safe. Based on our research, it supports WPA3 encryption, which is the newest WiFi security standard out there. This means your network's security is beefed up compared to what you'd get with the older WPA2.

The manufacturer points out that you can create separate networks with the 2.4GHz and 5GHz bands. While this mainly boosts performance, it's also handy for security because you can keep older or IoT gadgets separate from your main devices, like your laptop or gaming console.

Another feature the manufacturer talks about is the integrated firewall protection, which works to block unauthorized access and shield your network from online threats. You can also set up a guest network, which is awesome if friends are over and need WiFi—it keeps your main network private and secure.

The Archer AX21 also supports both VPN server and client setups, so you can encrypt your internet traffic and securely connect to private networks—great if you're working remotely or need safe access to region-specific content.

Our data shows that folks like the TP-Link Tether app for managing all these features. It's pretty user-friendly, but you might need to tweak some settings to get everything just right for your needs.

Overall, the TP-Link Archer AX21 isn't just about fast WiFi. It's got solid security features like WPA3, an integrated firewall, guest networks, and VPN support to keep your home network safe from the latest cyber threats.