Rel.7370n -tl-wr850n- | 3.16.0 0.9.1 V6031.0 Build 210407

The TP-Link TL-WR850N is a staple for Internet Service Providers (ISPs) and home users looking for a budget-friendly, reliable N300 router. If you are seeing the string 3.16.0 0.9.1 v6031.0 Build 210407 Rel.7370n in your router’s status page, you are looking at a specific firmware version released in April 2021.

Part 7: Open Source & Third-Party Alternatives

Because 3.16.0 0.9.1 v6031.0 is based on Linux, you might wonder if you can install OpenWrt or DD-WRT.

Connect to the router and go to http://tplinkwifi.net or 192.168.0.1 in your browser.

1. Hardware version – Is this TL-WR850N v1, v2, v3, or v4? You must check the sticker on the router itself.
2. Bootloader version – U-Boot or Realtek bootloader version (important for recovery).
3. Open source licenses – TP-Link uses GPL code, but this string doesn't point to the source tarball.
4. Vulnerability status – Even Build 210407 may miss patches for CVEs discovered after April 2021 (e.g., Name:Wreck, certain SOHO router attacks).