{"slug":"tplink-archer-a20-v1-us","display_name":"Archer A20","model_name":"Archer A20","hardware_revision":"v1","region_code":"US","category":"router","vendor":{"slug":"tplink","name":"TP-Link"},"verdict":{"status":"active","label":"Actively updated","confidence":"high","reason":"365 days since the last release against a median gap of 520 (0.7x)","algorithm_version":"lifecycle-1","computed_at":"2026-09-30T01:14:42.435695+00:00","thresholds":{"quiet_days":730,"active_max_days":365,"active_multiple":1.5,"slowing_multiple":3.0,"max_gap_dispersion":1.0,"high_confidence_releases":5,"min_releases_for_cadence":3,"never_updated_min_age_days":365}},"measurements":{"release_count":5,"first_release_date":"2018-12-18","last_release_date":"2025-09-30","days_since_last_release":365,"median_gap_days":520.5,"cadence_multiple":0.701,"observed_support":{"days":2478,"is_floor":true,"measured_from":"first_release"},"promise":{"end_date":null,"is_estimated":false,"is_floor":false,"honoured":null,"basis":"no_eol_announcement"},"cve_patch_latency_days":{"median":null,"measurable":false}},"releases":[{"version":"Archer A20(US)_V1_1.2.1 Build 20250919","channel":"stable","claimed_release_date":"2025-09-30","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-01T18:37:57.630436+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"New Features/Enhancement: 1. 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Optimized the HomeCare function, you can manage HomeCare function via Tether APP; 3. Optimized the DHCP function; 4. Supported the smart connect; 5. Added DNS TCP DNAT forwarding rules. Bug Fixed: 1. Fixed the bug that when the portal of the Guest Network is opened, the blocking page of the portal will pop up continuously after the authentication is passed; 2. Fixed the bug that when the length of the password entered in the login screen exceeds 32 bits, the excess part will be discarded; 3. Fixed the bug that Panasonic devices cannot find the paired device in the LAN network; 4. Fixed the bug that 2.4G probabilistic power anomaly.","disclosure_score":0.64,"mentions_security":false,"cve_ids":[],"download_url":"https://static.tp-link.com/2019/201912/20191202/Archer A20(US)_V1_191026.zip","evidence":{"id":203567,"source_url":"https://www.tp-link.com/us/support/download/archer-a20/v1/","fetched_at":"2026-09-29T03:06:17.283277+00:00","observed_at":"2026-09-29T03:06:17.283277+00:00","http_status":200,"content_sha256":"469dc97b9a096166a886ac47a94ad7aaad17189a627f6562d9007671e30546ee","html":"//firmwarewatch.cc/evidence/203567","raw":"//firmwarewatch.cc/evidence/203567/raw"}},{"version":"Archer A20(US)_V1_181122","channel":"stable","claimed_release_date":"2018-12-18","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-25T02:00:00.191624+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"First firmware released.","disclosure_score":0.3,"mentions_security":false,"cve_ids":[],"download_url":"https://static.tp-link.com/2019/201906/20190618/Archer A20(US)_V1_181122.zip","evidence":{"id":203567,"source_url":"https://www.tp-link.com/us/support/download/archer-a20/v1/","fetched_at":"2026-09-29T03:06:17.283277+00:00","observed_at":"2026-09-29T03:06:17.283277+00:00","http_status":200,"content_sha256":"469dc97b9a096166a886ac47a94ad7aaad17189a627f6562d9007671e30546ee","html":"//firmwarewatch.cc/evidence/203567","raw":"//firmwarewatch.cc/evidence/203567/raw"}}],"identifiers":[{"kind":"marketing_name","value":"Archer A20","normalized":"archer a20"}],"revisions":[{"slug":"tplink-archer-a20-v3-us","hardware_revision":"v3","region_code":"US"},{"slug":"tplink-archer-a20-v3-6-us","hardware_revision":"v3.6","region_code":"US"}],"evidence":{"archived_pages":1,"first_observed_at":"2026-08-01T18:37:57.630436+00:00"},"caveats":["observed_support.days is a lower bound: it runs from the first firmware we saw, because no source here publishes launch dates.","Patch latency is not computable for this product: its changelogs name no CVE ids."],"links":{"html":"//firmwarewatch.cc/devices/tplink-archer-a20-v1-us","self":"//firmwarewatch.cc/api/v1/products/tplink-archer-a20-v1-us.json","vendor":"//firmwarewatch.cc/api/v1/vendors/tplink.json","feed":"//firmwarewatch.cc/feeds/devices/tplink-archer-a20-v1-us.xml","methodology":"//firmwarewatch.cc/api/v1/methodology.json"}}