DFS 2008 R2 - Folder replication

Hi,

I am trying to replicate a 900GB folder from a 2008 R2 file server to a 2008 R2 file server. The process starts OK and I was able to see traffic moving from one server to the other for about 4 hrs. On the destination the receiving folder started showing that data was being written to - although you can't see it. Suddenly it stopped and has not restarted even after manual restarts of the DFS replication task. There is nothing in the logs on both servers, so it is all a bit puzzling.

Any suggestions/recommendations ?

Thanks