I am unable to use cloudflare dns as “private dns” in mobile networks. I’ve configured
1dot1dot1dot1.cloudflare-dns.com as address. If I disable wifi it will show “Couldn’t connect” in Settings->Wifi&Internet->Private DNS after some seconds.
Device/OS: Oneplus 6 with Android P OxygenOS (beta 2)
Mobile isp: “yesss!” which is a discounter in the “A1 Austria” mobile network.
Unfortunately I cannot test it with another mobile isp because I don’t know anyone else with android p & a different isp. However I am able to ping 126.96.36.199 form my phone with a normal ping (avg 70-100, max. ~350)