Windows 2008 R2 domain controllers and functional levels. Network connectivity is as follows:
DC03 ------ DC02 ------ DC01(FSMOs)
DC01 holds all the FSMOs. DC03, which has not been promoted yet, is currently communicating just fine with DC02. All of the FSMO roles are on DC01. All Sites, Subnets, and Site Link objects are correctly configured to represent the network situation shown above.
DC03 cannot communicate directly with DC01.
DCPromo on DC03 is currently failing because DCPromo runs some tests of direct network connectivity to the FSMO role holder. It's attempting an LDAP bind to the RID Master, which is failing, and at that point DCPromo assumes the RID Master is offline. But it is not offline.
Is there a way I can bypass the connectivity tests? DC03 is currently syncing with DC02 just fine and can read all the Active Directory it wants to from it.
I thought about doing an Install From Media, but I'd like more confirmation that it'll actually work before I try it, and I don't see any evidence that an IFM installation skips the connectivity tests that regular DCPromo does.
PS - Without moving the FSMO roles.