DNS over tls when running two different servers

[DEC740airp414user]

I subscribe to nextdns and controld

I've been using controld as my only dns over tls server.   Well today their service was down for about an hour.     It had been a Long time since I enabled two servers.  Today  I enabled both services I subscribed too.

I then logged into the nextdns website, and every sec it said I was using their service then it kept going to red saying I was not


Can anyone explain how dns over tls works when you have two servers added?

[yourfriendarmando]

It's possible your client was using its own DNS services. Browsers tend to try using their own DNS these days out of the box.

[DEC740airp414user]

I still am just using one dns over TLS server.  but using quad 9 now.    this option called forward first.   is this new?    I am not seeing this in any documentation.    it seems like it would fix my issue if forwarding to quad 9 or similar stopped.   it would use standard unbound.. correct?

where do I define the server time out setting?

later edit.  my googlefu has been bad this morning.   I did find this that explains what it is https://forum.opnsense.org/index.php?topic=45521.0