Came into the office this morning, and found that most of our staff could not connect to the internet. Checked our office DC (dns server) and the entire forward lookup zone is missing, no sub folders, nothing. Like it was never there. We have a wan connection to a data center and the DC (dns server) there is still intact, no issues. The event log shows that the problem started a few days ago, beginning with event ID 4015, 'The DNS Server has encountered a critical error from AD'. Then 4004 immediately after. Now all of the events show 4000.
We have one domain controller here at the office where the issue is occurring, and the other is at the data center. Both are PDC's. The data center DC is integrated.
I'm not really sure what to do. I see a lot of different 'fixes' for similar problems, but knowing how detrimental changes can be to a DNS zone, I'm hoping I can gain better knowledge here of what I should do. I was thinking of just creating a new DNS zone and to replicate from working DC at the data center, but I don't think it's as easy as that.
*Also, AD appears to be working fine. I can pull up users and objects as normal from the office DC, but the DNS zone is missing. I have made no network changes that I can think prior to the problem starting.
Please, any immediate feedback would be appreciated. Currently, most of our staff are unable to work.