I am trying to Migrate my Windows 2003 SBS SP2 to Windows Server 2012 Essentials R2 and have run into an issue. This is a very small network with few needs. We have 1 DC (\\DELLSERVER) and less than 10 users. Everything on the 2012 side seems to be okay with the exception of promoting the new server (\\HPSERVER) to a Domain Controller. I raised the domain function level on the 2003 side and all was great there or so I thought. When I go to promote the 2012 server to a domain controller it still sees the domain function level of the 2003 server as 2000.
On the 2003 server when I perform dcdiag /test:DNS or /test:checksecurityerror I get:
Domain Controller Diagnosis
Performing initial setup:
[DELLSERVER] LDAP bind failed with error 1323,
Unable to update the password. The value provided as the current password is
***Error: The machine could not attach to the DC because the credentials
were incorrect. Check your credentials or specify credentials with
/u:<domain>\<user> & /p:[<password>|*|""]
When I run repadmin /syncall I get
DsBindWithCred to localhost failed with status 1749 (0x6d5):
The security context is invalid.
I am not sure where to go from here and would like some advice on some course of action I can take.