Archer C9 v5
Gone quiet reasonably evidenced
no firmware for long enough to stand out against its own record
1477 days since the last release against a median gap of 290 (5.1x)
- Last firmware
- 13 September 2022 (4 years ago)
- Releases seen
- 5
- Update rhythm
- about every 10 months
- Support observed
- ≥5 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 C9 v1 (US) Gone quiet 3 releases
- Archer C9 v3 (US) Gone quiet 4 releases
- Archer C9 v4 (US) Gone quiet 3 releases
Firmware history
-
Archer C9(US)_V5_1.2.5 Build 20220429 13 September 2022
Release notes — disclosure 0.06
Bug Fixes: 1.Fixed KCODES-related security vulnerability PSV-2021-2090.
Archived page, fetched 29 September 2026
-
Archer C9(US)_V5_190403 15 April 2019
Release notes — disclosure 0.31
Enhancements: Improved the stability and performance of the device.
Archived page, fetched 29 September 2026
-
Archer C9(US)_V5_180423 1 June 2018
Release notes — disclosure 0.52
New Features/Enhancement 1. Added Alexa & IFTTT function 2. Improved the performance of IPv6 3. Improved the AP mode 4. Improved the NTP function Bug Fixed 1. Fixed the bug that sometimes the router fails to recognize the USB disk 2. Fixed the bug that the UPNP function might not work when use PPPoE, L2TP or PPTP connection 3. Fixed some UI error
Archived page, fetched 29 September 2026
-
Archer C9(US)_V5_180328 21 May 2018
Release notes — disclosure 0.49
New Features/Enhancement 1. Supported HTTPS Access 2. Supported the SMBv2 protocol 3. Improved the IPv6 performance 4. Improved the IPTV function 5. Improved system performance and reliability Bug Fixed 1. Fixed the WPA2 Security (KRACKs) Vulnerability 2. Fixed IPv6 issue with Comcast network 3. Fixed some UI errors 4.Fixed the bug that some entries for virtual server might not work
Archived page, fetched 29 September 2026
-
Archer C9(US)_V5_170831 31 August 2017
Release notes — disclosure 0.06
Modifications and Bug Fixes: 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 C9
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.