Issues after P2V migration of DC

Hi Experts,

I just took over a client who got their domain controller migrated to ESXi and they are having trouble with DNS. Because of which the computers are not able to communicate with the AD. I checked the event logs and i see the following errors there"

Event ID: 408 - The DNS server could not open socket address <IP Address of the server>. Verify that its the valid IP address for the server computer......

Event ID: 404 - The DNS server could not bind  a Transmission Control Protocol socket to address <IP Address of the server>.....

Event ID : 407 - The DNS server could not bind a User Datagram Protocol socket to address <IP Addres of the server>....

Please Help. If you can provide me instruction, that would be great.

Thanks
LVL 1
NishantAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

RantCanSr. Systems AdministratorCommented:
Have you verified that the virtual network settings in ESX are correct? If this is your only DNS server, ensure that the DNS role is configured properly for your domain.  Here is a technet regarding the first error message, as the others are implied by this one, meaning if the IP socket is not opened, the TCP, or UDP will not be open either.

https://technet.microsoft.com/en-us/library/cc735852(v=ws.10).aspx
1

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Chris HInfrastructure ManagerCommented:
Can you ping those IP address' belonging to those machines that it says it can't bind to?
0
NishantAuthor Commented:
@RantCan - I am not sure if the settings are correct. Please see below and let me know if they are not.

vSphere standard switch view
Vswitch properties
vswitch properties 2
vswitch propeties
vswitch properties 4
I couldnt find any unused network adapter inside the device manager. It seems that the network settings are not correct. please suggest. This is the only domain controller on our network.


@Choward, i am able to ping the ip addresses.
0
NishantAuthor Commented:
I was able to resolve it. It was the network setting, subnet on the ethernet adapter was set to 255.255.0.0 instead of 255.255.255.0. I changed the subnet, restarted the server and everything went back to normal. Thank you very much for your assistance.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.