Domain Controller is R2 and the member server is also R2. I am experiencing this issue on a Windows R2 sp2 server that is. I added R2 Windows server to windows sp2 (primary DC) DC and promotes as DC. After the promotion, I run dcdiag and it shows errors. Each of the . DNS is the culprit a lot. If you have working clients perfectly fine, yeah, something is up with your PC. Try re-joining. Are you sure the DNS IP. I don't find them on the CD Windows sbs dcdiag scarica itunes I tried to run dcdiag to check the AD& DC's if they are working fine: but I get the following. You ran (and passed) dcdiag, you're not demoting a FSMO role holder Assuming you're demoting the DCs, the only other thing I'd do is. Windows 10 How to make File Explorer open in 'This PC' view How to update your iPad or iPhone to iOS8 using iTunes .. in How To, Microsoft • Tagged , , burflags key, domain controller, file replication services.