I just added a new 2008 R2 std to a SBS 2003 domain. addprep and dcpromo went well and all seemed to be working. So I decided to take the SBS 2003 off-line and see if the new 2008 R2 DC would be an actual backup DC and would let my users log in. To my surprise all login attempts were unsuccessful. When I even tried to check AD domain users and domains from the 2008 R2 console the server responded the domain could not be reached.
I thought that adding a new DC would prevent such scenarios in the event of the main SBS 2003 being off-line/down.
Any ideas?
BTW, my next move is to retire the old SBS 2003 and migrate the domain to W2k8, but I guess I don’t want to demote the SBS until I’m certain the new DC will take his place.
