When VPN enabled, lost DNS and DCO / Event ID 8015, 334 ...

El Tistou 101 Reputation points
2021-05-15T10:33:08.837+00:00

Hello all,
On a Windows Server 2019, when I'm connected on the VPN (IKEV), I lost the connection with local DNS (event ID : 8015).
I lost the communication with my DC (event ID : 334, 5719, 1054).
Of course when I try to connect on shared folder : \nameofcomputer it don't work ... (by IP : yes).
When someone connect on this server it's very long and the VPN disconnect.
NSLookup show that it's the DNS remote who is by default.
So I change the metric, I enter "1" on my network adapter.
NSLookup show :
DNS Request timed out
Default server : Unknow
Address : 192.168.0.1

Thanks in advance for your help.

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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  1. Dave Patrick 426.1K Reputation points MVP
    2021-05-15T12:36:44.18+00:00

    Hopefully the VPN role is not installed on domain controller?

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  2. El Tistou 101 Reputation points
    2021-05-15T14:06:21.79+00:00

    This server is connected to a VPN server.
    It's not the server VPN.
    And on the DC there is not a VPN.

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  3. Dave Patrick 426.1K Reputation points MVP
    2021-05-15T14:11:00.233+00:00

    Still not a lot to go on and vague but check that the VPN connection box for use default gateway on remote network is checked or unchecked depending on goals.

    --please don't forget to Accept as answer if the reply is helpful--

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  4. El Tistou 101 Reputation points
    2021-05-15T14:16:26.237+00:00

    There is no option "gateway" in the VPN properties.

    96875-image.png

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  5. Dave Patrick 426.1K Reputation points MVP
    2021-05-15T14:38:53.22+00:00

    96837-image.png

    --please don't forget to Accept as answer if the reply is helpful--

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