We have a local TCP/IP network with 2 DC's (DNS servers) and for some reason , when one DC is down the Internet goes down, and we cannot connect to a application server held on another server.
This defies having 2 DC's.
I have checked the IP settings of the servers and they all look ok with the same gateway and DNS entries listed within the DC's and our application server.
It's a bit strange as we put 2 DC's in to stop this from happening, it looks like one DC is a master.
The 2 DC's do appear within AD, as DC's.
Any ideas please?