I have a very simple network setup that suddenly stopped working.
HOST COMPUTER : Window 8
Virtualization Software: VirtualBox v5.1.22
Server: Windows Server 2012 R2 (AD DS, DNS, DHCP service enable）
Client: Windows 10 Enterprise
Virtual Network Configuration: Both virtual machines are attached to
Internal Network named SkyNet and should be on the same network.
Windows Server 2012 is the domain controller, and has a fixed IP address of 10.1.10.2 and subnet mask of 255.0.0.0.
Default gateway is manually set to 10.1.10.5, which is not really ping-able because there is no router attached to this network.
Primary DNS server is 10.1.10.2, alternative DNS Server is 10.1.10.5.
DHCP server (10.1.10.2) has a scope of 10.1.10.100 to 10.1.10.200.
I have successfully added Win10 to the domain, and can obtain a correct IP address from the DHCP server every time I do
ipconfig /release and
However, instead of getting 10.1.10.5 as the default gateway, ipconfig on Win10 always returns 10.0.1.1 for default gateway.
ipconfig /all on Win10 will show correct domain name and DHCP Server.
I am able to ping WinServer 2012 from Win10, but not the other way around. I cannot ping to the incorrect default gateway from with Win10.
I have no idea what might have caused this headache, as this is a completely(?) isolated network. There should not be a second DHCP server messing with it.
Appreciate any help.