Why is my Windows Server DNS returning ‘nonexistent domain’ for internal records from specific subnets?

I'm currently restructuring my network because it's become overcrowded. We used to have a flat network, but now we've divided it into various subnets, including a default, wireless, and one for network devices. Here's how it's set up: I have a Unifi gateway at 192.168.0.1 and two Windows Servers at 192.168.0.2 and 192.168.0.4. The default workstation network is 192.168.0.0/24 and the wireless network is at 192.168.10.0/24. Right now, DHCP and DNS are both managed by the Windows Server. The issue arises when DNS requests for internal records, like server-1.net.local, come from the default subnet (192.168.0.0/24); they work just fine. However, when I try to resolve these records from other local subnets, the server returns 'nonexistent domain'. The requests are reaching the Domain Controller, but it fails to return results. I've checked the DNS logs, but there's nothing useful there. I suspect this problem is related to the server misidentifying the origin of the request, but I can't figure out how to fix it. Any guidance would be greatly appreciated!