@David-TP 1.6.1 isn't available for Deco X55 (US) V1.6 ? https://www.tp-link.com/us/support/download/deco-x55/v1.60/#Firmware 🔍

@lgitaar DoT works

Bug When setting up DoH, the option to enter an address should allow for full URIs Repro steps Go to More > Advanced > DoH & DoT Set DNS Privacy to DoH Select Add DNS Server Select Enter DNS Server...