Since version 3.11.13, the test Test DNSSEC resolveru s žolíkovými doménami reports an error - during the day there will be a period when the error is repeated more than 20 times in a row. I’m testing for 5-10 minutes. I’ve been observing the problem for about 3 days. Restarting the router will not improve anything. In previous versions, it was always without a any mistake.
