Archer C20 v5.6
Slowing down reasonably evidenced
updates are coming less often than this product's own history
616 days since the last release against a median gap of 266 (2.3x)
- Last firmware
- 21 January 2025 (2 years ago)
- Releases seen
- 3
- Update rhythm
- about every 9 months
- Support observed
- ≥1 year
- 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 C20 v1 Not enough evidence 0 releases
- Archer C20 v4 (US) Slowing down 3 releases
- Archer C20 v5 (US) Actively updated 8 releases
- Archer C20 v5.6 (CPI) Not enough evidence 1 releases
- Archer C20 v5.8 (US) Slowing down 3 releases
- Archer C20 v6.46 (CPI) Actively updated 3 releases
- Archer C20 v6.6 (CPI) Actively updated 3 releases
Firmware history
-
Archer C20(US)_V5.6_241231 21 January 2025
Release notes — disclosure 0.30
Enhance device security.
Archived page, fetched 29 September 2026
-
Archer C20(US)_V5.6_230924 1 December 2023
Release notes — disclosure 0.44
Modifications: Enhanced device security. Fixed the bug that prevented AX201 network cards from connecting to the 5GHz networks on Windows 11. Fixed the bug that occasionally caused disconnection issues for specific smartphone brands.
Archived page, fetched 29 September 2026
-
Archer C20(US)_V5.6_221028 8 August 2023
Release notes — disclosure 0.54
Modifications and Bug Fixes 1. Fixed the bug that the network cannot be automatically restored after PPPoE connection is disconnected; 2. Enhanced PPPoEv6 dial-up compatibility; 3. Fixed the Ping command error after the Router WAN is configured with a static IP address; 4. Update the IPVT profile; 5. Enhance device security.
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 C20
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.