DNS not working again (this time with the configuration that I used to "fix" it the first time)

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Hello,

I have a Virtual WAN and Virtual private LAN interfaces connected to pfSense, and from there the private LAN is connected to an Ubuntu VM (all on Hyper-V)

Last time, I disabled the DNS Resolver, and enabled the DNS Forwarder instead, and it started working.

Now, after a while, it stopped working as well.

These are the interfaces connected to the pfSense VM:

The 192.168.2.0/24 subnet is the same IP range as my home network

How can I debug what's going on? I was sure I "fixed" it last time but it does the same.

I can ping the IPs of the domains, but not the domains themselves.

Thanks