Pi-hole install not resolving DNS spratically

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Expected Behaviour:

DNS queries to be services at all times. (This once worked without issue for years)

Actual Behaviour:

Re-install of pihole on Ubuntu 18.04 (Hyper-V dedicated bonded NIC) sporadically will not resolve DNS. After several minutes DNS queries will be serviced again.

Debug Token:


Additional: When the VM is shut down and the router DHCP/DNS re-enabled the network will work correctly and maintain functionality for days and weeks.

I don’t see any issues in your log. You probably have either a networking issue or something caused by DNSSEC. Try disabling DNSSEC and see if it’s more stable.

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