Archer C5400X v1.6
Slowing down well evidenced
updates are coming less often than this product's own history
364 days since the last release against a median gap of 133 (2.7x)
- Last firmware
- 30 September 2025 (12 months ago)
- Releases seen
- 6
- Update rhythm
- about every 4 months
- Support observed
- ≥2 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.
- Archer C5400X v1 Gone quiet 1 releases
- Archer C5400X v1 (US) End of support 9 releases
Firmware history
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Archer C5400X(US)_V1.6_1.2.1 Build 20250928 30 September 2025
Release notes — disclosure 0.52
New Features/Enhancement: 1. Supported more parental control functions, including SafeSearch, YouTube Restricted, APP Time Limits, Always Allowed APPs, Offtime, etc. 2. Enhanced Web Filter, enriched visited/block history and optimized Blocked APPs for parental control. 3. Optimized QoS. 4. Enhanced security of device.
Archived page, fetched 29 September 2026
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Archer C5400X(US)_V1.6_240924 20 May 2025
Release notes — disclosure 0.06
Modifications and Bug Fixes: Enhance device security.
Archived page, fetched 29 September 2026
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Archer C5400X(US)_V1.6_1.1.7 Build 20240510 24 May 2024
Release notes — disclosure 0.06
Note: Enhanced system security and stability.
Archived page, fetched 29 September 2026
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Archer C5400X(US)_V1.6_1.1.6 Build 20231010 1 November 2023
Release notes — disclosure 0.32
Modifications: Fixed a display bug when accessing the web UI on mobile devices.
Archived page, fetched 29 September 2026
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Archer C5400X(US)_V1.6_1.1.5 Build 20230906 15 September 2023
Release notes — disclosure 0.31
Fixed the bug that parental control doesn't take effect.
Archived page, fetched 29 September 2026
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Archer C5400X(US)_V1.6_1.1.4 Build 20230801 31 August 2023
Release notes — disclosure 0.43
This update is recommended for all users and provides important security updates. Modifications and Bug Fixes 1. Enhance device security; 2. Improve the stability of the equipment.
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 C5400X
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.