The A3 hardware revision was released to improve MU-MIMO handling and dual-band interference. Keeping it updated provides:
Return to the Management page to confirm the "Current Firmware Version" matches the one you downloaded. 🛡️ Why Update the DIR-853 A3? dir853 et a3 firmware update link
Enhanced encryption for your wireless password. The A3 hardware revision was released to improve
Resolves issues where the 5GHz band disappears randomly. dir853 et a3 firmware update link