Hi!
We have two companies in our building, Company A and Company B. Company A has 50 client computers and one brand new DC (Win 2012 R2 Std). Company B has 5 clients and one established DC (Win 2008 R2 Foundation).
I work for Company A and I have the job of connecting all 50 clients to the new DC. Up until last week we had a workgroup set up and it has been my task to migrate our clients onto the domain. I have done 10 migrations of Win 7 machines so far, but three others seem to be unable to connect with the error: The specified network name is no longer available.
I have connected these successfully to Company B Domain Controller successfully so this seems to point towards Company A DC being wrong somewhere, but doesn't make sense as to why 10 other clients have connected fine.
Here are the troubleshooting steps I have taken so far:
I am in the Domain Admin group on Company A Active Directory
Computer Browser Service is running on server and affected client
Workstation Service is running on server and affected client
Server Service is running on server and affected client
To connect to the domain I have tried using the NetBIOS and the FQDN, I get the same error message.
NETLOGON service is enabled tried restarting - no difference
Windows Firewall is off
No AV installed at the moment. I have Sophos waiting to go on once the machine is hooked onto the domain.
DNS Reverse lookup manually created as it wasn't there
Tried ipconfig /flushdns /release /renew
NSLookup sucessful, can ping NETBIOS, FQDN of server and both client and server IP both directions
Affectted clients are configured with one network card.
I've been pulling my hair out for a few days on this one. Anyone have a possible solution for this.
Many thanks,
Matt