Go to Advanced > System (or System Tools) > Firmware Upgrade .
To get the latest official firmware for your , you can visit the official TP-Link Support Download Center . Ensure you select V3.20 from the hardware version dropdown menu to avoid downloading incompatible software. Latest Firmware Overview tp link archer c6 v320 firmware link
This is the most reliable method for ensuring a clean installation. Go to Advanced > System (or System Tools) > Firmware Upgrade
The router will reboot automatically. Do not power off the device during this 3-minute process. Method 2: Automatic Update via TP-Link Tether App tp link archer c6 v320 firmware link
Enhancements to device security protocols to protect against vulnerabilities.
You can update your router using either the web management page or the mobile app.