Did you already find a solution for this, we're experiencing the exact same problem after we installed a second agent handler in an other site.
You might have a "ghost" agent handler, See if you can remove that and if there's any change.
I have some problem on clients agent handler always appear respository list I need disable this because many clients connect trough slow link and same time replication your repositories fail.
Somebody known how to disable agent handlers of repository list?
How can i remove the ghost Agent Handler in ePolicy Orchestrator 4.5.1? I cannot find the way.