DNS-over-HTTPS causes more problems than it solves

The one of step to troubleshoot this issue is that taking packet capture to see where DNS query / answer is dropped between device reports the issue and the DNS server, because the warning message (Bad DNS) is shown up when the device is unable to receive answer from the configured DNS server. How to Fix Bad_address Entry On a DHCP Server? — Tech Support A DHCP server receiving a reply to any of the pings (meaning there is a conflict) attaches a BAD_ADDRESS value to that IP address in the scope, and will try to lease the next available address. If the duplicate address is removed from the network, the BAD_ADDRESS value attached to the IP address can be deleted from the scope’s list of active Need DNS Server info | AT&T Community Forums May 25, 2018 ERROR:DNS_ERROR_BAD_PACKET - VCSA 6.5 |VMware … 20181004174621:ERROR:DNS_ERROR_BAD_PACKET [DNS_ERROR_BAD_PACKET] A bad packet was received from a DNS server. Potentially the requested address does not exist. Can anyone help. - Firewall ports are opened - NTP setting is ok - DNS setting are ok - …

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Bad Response From Server & DNS lookup error error messages

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