{"slug":"asus-4g-ac86u-modem","display_name":"4G-AC86U Modem","model_name":"4G-AC86U Modem","hardware_revision":"","region_code":"","category":"modem_gateway","vendor":{"slug":"asus","name":"ASUS"},"verdict":{"status":"quiet","label":"Gone quiet","confidence":"medium","reason":"1238 days since the last release against a median gap of 362 (3.4x)","algorithm_version":"lifecycle-1","computed_at":"2026-09-30T00:14:45.217810+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":3,"first_release_date":"2021-05-17","last_release_date":"2023-05-11","days_since_last_release":1238,"median_gap_days":362.0,"cadence_multiple":3.42,"observed_support":{"days":724,"is_floor":true,"measured_from":"first_release"},"promise":{"end_date":null,"is_estimated":false,"is_floor":false,"honoured":null,"basis":null},"cve_patch_latency_days":{"median":null,"measurable":false}},"releases":[{"version":"A21_02_001","channel":"stable","claimed_release_date":"2023-05-11","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-02T11:15:35.628116+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Fixed disconnection issue from incomplete packet error of base station side on several ISP and made 4G-AC86U more resilient.Please unzip the file and refer to the section 4.7.3 Firmware upgrade in the user manual to upgrade the modem firmware.","disclosure_score":0.35,"mentions_security":false,"cve_ids":[],"download_url":null,"evidence":{"id":203608,"source_url":"https://www.asus.com/networking-iot-servers/modem-routers/all-series/4g-ac86u/helpdesk_bios?model2Name=4G-AC86U","fetched_at":"2026-09-29T03:07:14.232140+00:00","observed_at":"2026-09-29T03:07:14.232140+00:00","http_status":200,"content_sha256":"6f12865ee50368bc67efe1cdace3d2b66ca6ec45dbcf62bbc8a75d998502f69d","html":"//firmwarewatch.cc/evidence/203608","raw":"//firmwarewatch.cc/evidence/203608/raw"}},{"version":"A18","channel":"stable","claimed_release_date":"2022-05-23","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-02T11:15:35.628116+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"Please unzip the file and refer to the section 4.7.3 Firmware ugprade in the user manual to upgrade the modem firmware.","disclosure_score":0.33,"mentions_security":false,"cve_ids":[],"download_url":null,"evidence":{"id":203608,"source_url":"https://www.asus.com/networking-iot-servers/modem-routers/all-series/4g-ac86u/helpdesk_bios?model2Name=4G-AC86U","fetched_at":"2026-09-29T03:07:14.232140+00:00","observed_at":"2026-09-29T03:07:14.232140+00:00","http_status":200,"content_sha256":"6f12865ee50368bc67efe1cdace3d2b66ca6ec45dbcf62bbc8a75d998502f69d","html":"//firmwarewatch.cc/evidence/203608","raw":"//firmwarewatch.cc/evidence/203608/raw"}},{"version":"A21-004","channel":"stable","claimed_release_date":"2021-05-17","claimed_date_precision":"day","is_vendor_dated":true,"first_observed_at":"2026-08-02T11:15:35.628116+00:00","observation_kind":"live_crawl","withdrawn_at":null,"changelog":"- Fixed AT command condifure errors - Support Carry Aggregation information - Fixed SMS message errors - Fixed SPN alphabet errorsPlease unzip the file and refer to the section 4.7.3 Firmware ugprade in the user manual to upgrade the modem firmware.","disclosure_score":0.35,"mentions_security":false,"cve_ids":[],"download_url":null,"evidence":{"id":203608,"source_url":"https://www.asus.com/networking-iot-servers/modem-routers/all-series/4g-ac86u/helpdesk_bios?model2Name=4G-AC86U","fetched_at":"2026-09-29T03:07:14.232140+00:00","observed_at":"2026-09-29T03:07:14.232140+00:00","http_status":200,"content_sha256":"6f12865ee50368bc67efe1cdace3d2b66ca6ec45dbcf62bbc8a75d998502f69d","html":"//firmwarewatch.cc/evidence/203608","raw":"//firmwarewatch.cc/evidence/203608/raw"}}],"identifiers":[{"kind":"marketing_name","value":"4G-AC86U Modem","normalized":"4g ac86u modem"}],"revisions":[],"evidence":{"archived_pages":1,"first_observed_at":"2026-08-02T11:15:35.628116+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/asus-4g-ac86u-modem","self":"//firmwarewatch.cc/api/v1/products/asus-4g-ac86u-modem.json","vendor":"//firmwarewatch.cc/api/v1/vendors/asus.json","feed":"//firmwarewatch.cc/feeds/devices/asus-4g-ac86u-modem.xml","methodology":"//firmwarewatch.cc/api/v1/methodology.json"}}