Hi All, I have a Windows 2000 Cluster running Exchange 2000 Enterprise edition with SP 3 of exchange and SP 4 of OS. I have 2 domain controllers running Windows 2000 with SP 4 1. DC002 is a replica DC plus GC. 2. DC003 is a master DC plus GC. This server is operation master for every thing. I have serious issue with exchange directory access automatically pointing to single DC only (DC002). As a result in case of un-availability of this server my users suffer. I want my exchange to point at both the DC's (DC002 & DC003) I have tried making manual connection by adding names of GC, Configuration and DC for both the servers. Now I started getting event warning message that domain controller does not exists:- EVENT ID: 2090 EVENT Source: MSExchangeDSAccess Can anyone answer this query? Await your reply. Thanks & Regards, Rajnish Malik