Just to add to what Alemabrahao said, you can think of NAT mode as a "Guest" network. It is completely isolated from your local LAN. So any of your clients getting an IP from a Domain Controller or DHCP won't be able to reach those clients. If you switch to Bridge Mode, those clients will receive an IP based off the subnets you personally created and as a result, you'll be able to communicate over the LAN. They may start getting 192.168.9.X addresses depending on how you configured it. Hope that helps.
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