: If you are on an older build, updating to the 2025/2026 firmware is highly recommended for the DoH support IoT isolation
Firmware is the operating system for your router. Updates in 2025 are primarily focused on maintaining security against new vulnerabilities and improving stability.
Added Korean language; NTP time sync fix; enhanced security. Archer C6 V3 V3.20_210322 April 2021 tplink archer c6 latest firmware version 2025 new
💡 : The new firmware cannot be downgraded to the previous version, so be sure you're ready to commit before updating.
To check your current firmware version, follow these steps: : If you are on an older build,
in Access Point (AP) mode and fixed issues where the router could not be accessed remotely via the TP-Link Tether app www.tp-link.com Latest Versions by Hardware Revision (as of Early 2026)
Many users complained about the 5GHz Wi-Fi band randomly dropping for 10–15 seconds on older firmware (version 1.3.5 and below). TP-Link engineers confirmed this was due to a DFS (Dynamic Frequency Selection) channel switching glitch. The introduces a refined channel selection algorithm, completely eliminating that micro-disconnect issue. Archer C6 V3 V3
The latest confirmed firmware for Archer C6 V2 remains , released in 2022. Several user inquiries in 2025 have confirmed that no newer firmware has been released for the V2 hardware version.
The TP-Link Archer C6 is a popular wireless dual-band gigabit router known for its robust performance, ease of use, and affordability. This paper aims to provide an in-depth evaluation of the Archer C6 with its latest firmware version released in 2025. We will discuss the new features, improvements, and performance enhancements introduced in the latest firmware, as well as the router's overall performance, security, and functionality.
TP-Link Archer C6 firmware updates in 2025/2026 primarily focus on security, stability, and new features like EasyMesh in AP mode, with specific versions required for V2, V4, and V6 hardware. Key updates include enhanced DNS protection and improved UI stability. For the latest firmware, visit TP-Link Support www.tp-link.com
: Newer firmware now supports an EasyMesh Topology Map and allows for upgrading multiple mesh devices simultaneously.