Archer AX21 v1.26
Gone quiet thin evidence
no firmware for long enough to stand out against its own record
1251 days of silence, past the 730-day floor that applies where there is no cadence to compare against
- Last firmware
- 27 April 2023 (3 years ago)
- Releases seen
- 2
- Update rhythm
- too few releases to model
- Support observed
- ≥5 months
- 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 AX21 v1.2 (US) Slowing down 12 releases
- Archer AX21 v2 Gone quiet 1 releases
- Archer AX21 v2 (US) Slowing down 9 releases
- Archer AX21 v2.6 (US) Slowing down 5 releases
- Archer AX21 v3 (US) Gone quiet 8 releases
- Archer AX21 v3.6 (US) Gone quiet 7 releases
- Archer AX21 v4 Not enough evidence 0 releases
- Archer AX21 v4.6 (US) Slowing down 5 releases
- Archer AX21 v5.46 (US) Not enough evidence 1 releases
- Archer AX21 v5.6 (US) Gone quiet 3 releases
Firmware history
-
Archer AX21(US)_V1.26_230426 27 April 2023
Release notes — disclosure 0.25
Note: 1. Improved system stability 2. Fixed some security issues
Archived page, fetched 29 September 2026
-
Archer AX21(US)_V1.26_1.3.6 Build 20221125 2 December 2022
Release notes — disclosure 0.58
New Features/Enhancement: 1. Enhance device security; 2. Fixed the bug that if you manually configure DNS for IPv4 in PPPoE co-session scenarios, the ISP DNS is still configured for domain name resolution; 3. Fixed the bug that the RA configuration does not take effect correctly in specific cases during IPv6; 4. Fixed the bug that when enabling PPPoEV6, the field carried by PPPoE dial-up does not contain the service name; 5. Fixed the bug that the TimeMachine does not work under Macos13.1.
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 AX21
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.