Do update if:
Do NOT update if:
A quiet patch was released to prevent a vulnerability where an attacker on your LAN could guess the admin password faster than intended. Worth updating for this alone. tp link archer c6 v3.20 firmware
Do not proceed if you see v2.0, v4.0, or v3.0 (without the .20 suffix).
The Archer C6 v3.20 supports TP-Link HomeShield (security, QoS, and parental controls). The recent firmware patches a bug where traffic statistics would reset every time the router rebooted. Do update if:
The burning question for enthusiasts: Can I install OpenWRT on the Archer C6 v3.20?
The short answer: Limited support, not recommended. Do NOT update if: A quiet patch was
While the Archer C6 v2.x (Qualcomm) has excellent OpenWRT support, the v3.20 (Realtek) is a different beast. Realtek drivers are proprietary and harder for open-source communities to support.
Verdict: Stick to stock TP-Link firmware for v3.20. If you need OpenWRT, trade your router for a v2.x or buy a different model like the C6U or Xiaomi AX3000T.
Warning: Wired connection only. Do this over Ethernet, not Wi-Fi.