Device Support-Lifespan Observatory

What vendors do, not what they announce.

TP-Link

Archer C5400 v2

Gone quiet well evidenced

no firmware for long enough to stand out against its own record

1110 days since the last release against a median gap of 309 (3.6x)

Sign in to be emailed when this verdict changes.
Last firmware
15 September 2023 (3 years ago)
Releases seen
7
Update rhythm
about every 10 months
Support observed
≥7 years
Vendor's promise
no support period we can evaluate
Patch latency
not measurable — its changelogs name no CVE ids

Which one do I have?

TP-Link ships this model in more than one hardware revision, and they do not share firmware. The revision is printed on the label on the underside, usually after the model — Ver 1.0, V4.6. Getting it wrong is the easiest way to read the wrong answer here.

Firmware history

  1. Archer C5400(US)_V2_1.2.9 Build 20230907 15 September 2023

    Release notes — disclosure 0.41 
    Bug Fixed: 1. Fixed some security issues. 2. Fixed the bug that parental control doesn't take effect.

    Archived page, fetched 29 September 2026

  2. Archer C5400(US)_V2_1.2.6 Build 20220511 15 July 2022

    Release notes — disclosure 0.31 
    Release note: 1.For Archer C5400(US)2.0 2.Update Cloud SSL Certificate

    Archived page, fetched 29 September 2026

  3. Archer C5400(US)_V2_190411 7 November 2019

    Release notes — disclosure 0.49 
    New Features/Enhancements: 1. Improved the stability and performance of the device.; 2. Optimized the bed time of parental control; 3. Optimized Qos function. Bug Fixed: Fixed the bug that the DHCP server function doesn't work normally when the description of DHCP reservation contains special characters.

    Archived page, fetched 29 September 2026

  4. Archer C5400(US)_V2_170912 12 September 2017

    Release notes — disclosure 0.46 
    Modifications and Bug Fixes: Bug Fixed: 1. Fixed the bug that router will be reset sometimes. 2. Fixed the bug that Homecare features can't be saved under certain condition. 3. Improved stability and performance of Speedtest feature.

    Archived page, fetched 29 September 2026

  5. Archer C5400(US)_V2_170630 30 June 2017

    Release notes — disclosure 0.51 
    Modifications and Bug Fixes: New Features/Enhancement: 1. Added HomeCare features, including Parental Controls, Antivirus and QoS functions (already deleted the previous Parental Control & Bandwidth Control functions). 2. Added Speedtest function. 3. Added support for AP mode.

    Archived page, fetched 29 September 2026

  6. Archer C5400(US)_V2_170406 6 April 2017

    Release notes — disclosure 0.51 
    Modifications and Bug Fixes: Bug Fixes 1. Fixed the bug that NoIP will not update when the WAN IP address changed. 2. Fixed the bug that cannot login the web management page after the upgrade; 3. Fixed the auto reboot issue.

    Archived page, fetched 29 September 2026

  7. Archer C5400(US)_V2_160927 27 September 2016

    Release notes — disclosure 0.06 
    Modifications and Bug Fixes: The first firmware released.

    Archived page, fetched 29 September 2026

Evidence

One archived page sits behind this record, the earliest read on 1 August 2026. Everything above was read from it, and each is kept byte for byte so it can be checked after the vendor edits the original.

Identifiers: marketing_name Archer C5400

Judged by lifecycle-1 on 29 September 2026. How these verdicts are computed.

Machine-readable: JSON · RSS