Perhaps the two domain controllers are not in the same domain, even if they look like they are, as with the Two PDC problem.
Ed Crowley MCSE+Internet MVP Freelance E-Mail Philosopher Protecting the world from PSTs and Bricked Backups!T -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Anderson Sent: Tuesday, February 25, 2003 3:55 PM To: Exchange Discussions Subject: Backup Domain Controller causing problems??? Hello, Could someone please throw some ideas my way, as to why having a Secondary Domain Controller active on the network, could mess up authentication? If I have our BDC turned on and active on the network, and our users attempt to fire up their Outlook from the outside (using Exchange RPC Server published through our ISA Server), they are unable to authenticate. However, if I turn off our BDC, then they can authenticate just fine. This is also the case from time to time, when workstations are initially turned on, and perform their initial login into the Domain. It's almost as if the BDC, is responding first to the authentication requests, and doesn't have a current copy of all the user/password information. I say that, because by turning off the BDC, everything works fine once again. This may be my ignorance - regarding how Domain Controllers differ from NT4.0 versus Windows 2000 networks. It's my understanding that a Backup Domain Controller - simply makes a copy of all items in Active Directory - users, computers, passwords, etc. and then responds to requests if the Primary Domain Controller doesn't respond in a timely manner. Is there anything else, other than using the setup wizard, and joining the Forest, that I need to do in order to properly set up a Backup Domain Controller? I would think, that going through the setup wizard, and simply letting it run on the network, was all there was to it. Am I missing something here? Do I need to initiate some kind of replication process, or synchronization in order to get the BDC current with it's information? (provided that this is even the problem?) If anyone could offer *anything* regarding this subject, I would be grateful, as I see it to be very important to have our BDC operational in case our PDC ever dies. Thanks, Mike _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
