Firmware Version- 3.16.0 0.9.1 V6031.0 Build 210407 Rel.7370n -tl [portable] Jun 2026
If your device already shows (or a close variant), you are up to date. If not, proceed to the update section.
Solution: If your internet is working properly and you are experiencing faster browsing, the DNS is likely set correctly, even if the Status menu reflects the ISP defaults. Check your DNS change using an online DNS leak test.
3.16.0 0.9.1 v6031.0 Build 210407 Rel.7370n -TL If your device already shows (or a close
If your device is running an older version (e.g., 3.14.x or 3.15.x) and you want to upgrade to , follow these steps carefully. A failed firmware update can brick your device.
One 10/100Mbps WAN port alongside four 10/100Mbps LAN ports. Check your DNS change using an online DNS leak test
| Component | Value | Meaning | | :--- | :--- | :--- | | | 3.16.0 | Major kernel or RTOS version. Indicates a stable, mature codebase. | | Subsystem Version | 0.9.1 | Likely a wireless stack or hardware abstraction layer (HAL) patch. | | Silicon Revision | v6031.0 | Refers to the specific SoC (System on Chip) stepping, e.g., a Realtek RTL8197 or RTL838x series. The 6031 might denote a reference board design. | | Build Date | 210407 | YyMMdd format: April 7, 2021. This is crucial for cybersecurity (pre/post Log4j, etc.). | | Release Tag | Rel.7370n | Internal QA milestone. The n may indicate a nightly build or network-specific optimizations. | | Variant Suffix | -TL | Most likely TP-Link or a derivative hardware platform. Could also denote "Trunk Line" or "Transmission Layer" in telecom contexts. |
: The specific release code used by developers to track bug fixes and beta test branches before pushing the software out to production lines. One 10/100Mbps WAN port alongside four 10/100Mbps LAN ports
Have you checked your router’s firmware today? Log in and look for "Build 210407" – if you see it, you know exactly what to do.
Based on user experiences, here are some insights into this specific firmware:
is more than a legacy build – it is a snapshot of networking technology in early 2021: transitioning to WPA3, struggling with DFS, and leveraging dual-image safety. If your device runs this version, you now understand its strengths (VLAN tagging, airtime fairness) and its fatal flaws (year-old CVEs, IGMP leaks).