4 sites, at least 1 server at each site
Main site has two DCs.
"DC2" is replicating to "Remote1" server. Remote1 server isn't replicating at all. I've checked DNS settings, read a million threads on this site, I'm either looking in the wrong spot or doing the wrong things. I'm almost positive it is not a connectivity issue. I can ping and resolve with DNS to and from each server.
Where do I begin?
Can you paste the output from Replmon or Repladmin?
Also you can check by adding a test object(a user or a group) on one DC and check whether the object is replicating to the other DC after 5 min(default replication time).