{"slug":"tplink-archer-ax21-v2-6-us","display_name":"Archer AX21","model_name":"Archer AX21","hardware_revision":"v2.6","region_code":"US","category":"router","vendor":{"slug":"tplink","name":"TP-Link"},"verdict":{"status":"slowing","label":"Slowing down","confidence":"high","reason":"377 days since the last release against a median gap of 227 (1.7x)","algorithm_version":"lifecycle-1","computed_at":"2026-09-30T01:14:39.243879+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":"2022-01-28","last_release_date":"2025-09-18","days_since_last_release":377,"median_gap_days":227.0,"cadence_multiple":1.661,"observed_support":{"days":1329,"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 AX21(US)_V2.60_2.1.9 Build 20250424","channel":"stable","claimed_release_date":"2025-09-18","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":"Enhancements 1. 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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.","disclosure_score":0.58,"mentions_security":true,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2022/202212/20221202/Archer AX21(US)_V2_221125.zip","evidence":{"id":201810,"source_url":"https://www.tp-link.com/us/support/download/archer-ax21/v2.60/","fetched_at":"2026-09-29T02:09:37.269681+00:00","observed_at":"2026-09-29T02:09:37.269681+00:00","http_status":200,"content_sha256":"4afeaebe03ac493a90bff23e6764e61af9356045ccf22f9f70a2e2f25418114d","html":"//firmwarewatch.cc/evidence/201810","raw":"//firmwarewatch.cc/evidence/201810/raw"}},{"version":"Archer AX21(US)_V2.6_211231","channel":"stable","claimed_release_date":"2022-01-28","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-13T02:00:00.107884+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Enhancement: 1.Improved wired and wireless stability; 2.Maximum wireless devices on single band increased to 128; 3.Updated dnsmasq version. Bug Fixed: 1.Fixed the bug that the router has unstable Internet connection in some cases; 2.Fixed the bugs on the Web UI; 3.Fixed the bug that parent control will take affect one hour earlier after the end of daylight saving time.","disclosure_score":0.53,"mentions_security":false,"cve_ids":[],"download_url":"https://static.tp-link.com/upload/firmware/2022/202201/20220128/Archer AX21(US)_V2_211231.zip","evidence":{"id":201810,"source_url":"https://www.tp-link.com/us/support/download/archer-ax21/v2.60/","fetched_at":"2026-09-29T02:09:37.269681+00:00","observed_at":"2026-09-29T02:09:37.269681+00:00","http_status":200,"content_sha256":"4afeaebe03ac493a90bff23e6764e61af9356045ccf22f9f70a2e2f25418114d","html":"//firmwarewatch.cc/evidence/201810","raw":"//firmwarewatch.cc/evidence/201810/raw"}}],"identifiers":[{"kind":"marketing_name","value":"Archer AX21","normalized":"archer ax21"}],"revisions":[{"slug":"tplink-archer-ax21-v1-2-us","hardware_revision":"v1.2","region_code":"US"},{"slug":"tplink-archer-ax21-v1-26-us","hardware_revision":"v1.26","region_code":"US"},{"slug":"tplink-archer-ax21-v2","hardware_revision":"v2","region_code":""},{"slug":"tplink-archer-ax21-v2-us","hardware_revision":"v2","region_code":"US"},{"slug":"tplink-archer-ax21-v3-us","hardware_revision":"v3","region_code":"US"},{"slug":"tplink-archer-ax21-v3-6-us","hardware_revision":"v3.6","region_code":"US"},{"slug":"tplink-archer-ax21-v4","hardware_revision":"v4","region_code":""},{"slug":"tplink-archer-ax21-v4-6-us","hardware_revision":"v4.6","region_code":"US"},{"slug":"tplink-archer-ax21-v5-46-us","hardware_revision":"v5.46","region_code":"US"},{"slug":"tplink-archer-ax21-v5-6-us","hardware_revision":"v5.6","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-ax21-v2-6-us","self":"//firmwarewatch.cc/api/v1/products/tplink-archer-ax21-v2-6-us.json","vendor":"//firmwarewatch.cc/api/v1/vendors/tplink.json","feed":"//firmwarewatch.cc/feeds/devices/tplink-archer-ax21-v2-6-us.xml","methodology":"//firmwarewatch.cc/api/v1/methodology.json"}}