AD Replication issue - the destination server is rejecting replication

Hello, I have 3 DC servers, 2 in prod environment and 1 in DR and I just found out that the DNS Server is not replicating in the DR server. I change a DNS entry in 1 Prod dc last Mar 9. It replicated in the other prod DC but not in DR. So I just manually edit the entry in the DR. Is there a command to force replicate DNS changes from 1 DC to other? What other ways I can very if there is a issue in my DR server? Is there a log also to check maybe someone has edit it???