Question : Bad Addresses in DHCP keep coming back

Hello. This problem has been bugging me for the last few months and I can't seem to find any good info on why I am getting this problem or how to fix it.

Here is the problem:
We have 3 Domain Controllers, 2 of which are DHCP servers, all running Server 2003 SP-2 Standard Ed. Both DHCP servers have a range from 192.168.2.1 to 192.168.3.254. Server "A" excludes addresses 192.168.2.1 through 192.168.3.0. Server B excludes addresses 192.168.3.0 through 192.168.3.254.

Now, we have about 140 DHCP reservations for certain PCs on the network.  The reservations are created on both DHCP servers.  We have been seeing a number of reservations turn to "BAD_ADDRESS" on one server and we are left to recreate the reservation. Any thoughts?

P.S. If you need any other info I forgot to add please let me know.

Answer : Bad Addresses in DHCP keep coming back

Generally, BAD_ADDRESS means that a client already has an address.
What are your scope lease times? Are they identical on both DHCP servers?
Are static resverations mirrored across both DHCP servers?
Are your domain controllers multi-homed - if so, this is not a recommended configuration.  
Within DHCP, do you:
1. have conflict detection turned on?
2. Increase the number of conflict detection attempts

Also, are your DHCP database and log files excluded from any on-access virus scanning?

HTH