I've configured the DNS settings on my router to point to Cloudflare's secure DNS (18.104.22.168 and 22.214.171.124) and all web browsing etc works fine. Apart from the VR600 configuration page which tells me "Internet Status: Disconnected. Please configure your DNS manually." Fine I know it works, but I cannot get to the TP-Link Cloud options on the router, and just get "Oops...The device is offline. Please check the WAN and network configuration to make sure the appropriate settings are entered correctly".
Any ideas? Is the router maintenance app incompatible with secure DNS, or have I got a setting wrong somewhere?