Mr JP is correct - I have the latest Airport Extreme and even that is no match for the newer equipment from other suppliers - when it reaches its maker it wont be replaced by Apple gear as its no longer being produced or supported.
I will get a proper Mesh system - tri-band and WiFi6
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John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.