Hi,
I have a hyper-V machine which has been set up the following way -
Hyper-V Host Machine
Machine Name - Computer1
IP - 192.168.1.2
Subnet Mask - 255.255.255.0
Default Gateway - none because this machine has no need to connect to the internet
Preferred DNS Server - 192.168.1.3
Roles Installed - Hyper-V
Hyper-V Guest Machine 1
Machine Name - Computer2
IP - 192.168.1.3
Subnet Mask - 255.255.255.0
Default Gateway - none because this machine has no need to connect to the internet
Preferred DNS Server - 127.0.0.1
Roles Installed - AD DS (and the dcpromo tool installed the DNS Server role alongside, and configured it)
Domain Name - mydomainname.com
Hyper-V Guest Machine 2
Machine Name - Computer3
IP - 192.168.1.4
Subnet Mask - 255.255.255.0
Default Gateway - (none for now, because there is no router or internet connection yet, but will be set to 192.168.1.1 after we buy the router and the connection)
Preferred DNS Server - 192.168.1.3
Roles Installed - (yet to install and configure the VPN role)
Hyper-V Guest Machine 3
Machine Name - Computer4
IP - 192.168.1.5
Subnet Mask - 255.255.255.0
Default Gateway - (none for now, because there is no router or internet connection yet, but will be set to 192.168.1.1 after we buy the router and the connection)
Preferred DNS Server - 192.168.1.3
Roles Installed - (yet to install and configure IIS)
All machines are running Windows Server 2008 R2.
After reading up on this problem online, I temporarily disabled the Windows Firewall on all machines.
The following protocols have been enabled on all network adapters - IP V4, File and Printer Sharing, Client for Microsoft Networks
All machines are able to ping one another - both by IPs, and by Machine Names.
However, Computer2 is unable to ping Computer4 by name. It can ping it by IP though.
All other machines can ping Computer2 both by machine name, and by the FQDN, along with being able to ping it by IP.
I have configured the domain controller on the AD DS role, but still whenever I try to add any machine to the domain, I get the error message in the thread title.
I've been through several threads on the same issue found on google, enabled/disabled a few things based on findings and recommendations, and then posted back my machine's current stats. And yet I still get the same error message, and am unable to join any
machine to the domain. If I try joining a machine to the domain through a client computer - I get the above error message. If I try adding a computer through the Server Manager in the DC, it just adds a blank entry with the supplied computer name.
What gives?
P.S. (I know the first response will be to ask me to post the results of ipconfig /all, but my question is - does it give out any sensitive information? Because I have hidden my actual computer names and domain name for security reasons. This network is to
soon become our live production network for our business.)