Servers Continue to Contact Old Site Domain Controllers After Moving to a New Region

[Windows 10]

We have an Active Directory domain with 8 domain controllers (DCs) distributed across 4 sites (regions). Each site has 2 DCs for redundancy. When transferring virtual machines (VMs) between regions (with their IP addresses updated to the subnet of the new region and DNS settings configured to point to the new site’s DCs in the network interface), we encounter an issue: the VMs continue to contact domain controllers from the old site instead of the new one. For example, after moving a VM to a new region with the subnet 10.10.10.0/24 and setting its DNS servers to the new site’s DCs (10.10.10.10

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