![]() ![]() One thing you could do is disable DNSSEC. Pfsense DNS Resolver Not Working – Disable DNSSEC An issue with your DNS servers can cause cascading problems that propagate throughout your entire network. So, that means that one possibility is that you are having an issue with your WAN equipment or some other piece of upstream network gear that is, for whatever reason, not properly passing the DNS traffic using a method that is DNSSEC compatible.Ī Pfsense DNS resolver not working can bring a business to it’s knees. So, you might want to check on your internet connection. ![]() If you find that the firewall software is unable to resolve hostnames but the DNS Resolver is active, then that may be a sign that you aren’t getting anything coming in on the WAN port. This is in contrast to older installations and to upgraded installations that will, by default, use a DNS Forwarder that requires DNS Servers to be entered if they aren’t acquired over a DWAN (Dynamic Wide Area Network) such as DHCP or PPPoE connection. In this configuration, pfSense will query root servers and other authoritative servers directly. In pfSense’s default configuration, it will use the DNS Resolver in a mode that doesn’t require that any specific DNS servers have to be put in. If DNS resolution isn’t working well on the firewall, then you might want to check which DNS services are enabled and how they are configured. Pfsense DNS Resolver Not Working – Check Your DNS Server Settings So, if you are able to ping the IP but not the domain names, then there is definitely some sort of DNS resolution problem that you have to take care of. When you test it, if you are indeed able to ping the IP address from the client machine, after that you should try to ping a website name instead, like or Try that from the firewall GUI and also do the same thing on the client PC. If the firewall can ping that address, then perform the same test from the client PC: ![]() The IP addresses for Google’s DNS servers are 8.8.8.8 or 8.8.4.4. Google has several free DNS servers that everyone in the world is welcome to use. If you aren’t sure about the gateway address, you can always put in a known-good DNS server. Pfsense DNS Resolver Not Working – Troubleshooting DNS Resolution Issues
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