Does the free service limits the number of DNS Requests per a min/hour or so?
I have DNS Cache disabled and my browser (Yandex) uses dnscrypt to handle DNS requests, but sometimes DNS just stops. I have to wait for 1-2 mins till it gets working again. In the meantime I can switch to another DNS provider and use it just fine. Or maybe it is caused by a particular server? Usually I am using Netherlands server, but it is German at the moment (184.108.40.206).