Data Replication issues over VPN

I have set up data replication tasks between 2 DSS's on the same LAN. This was working absolutely fine, however we have now moved one DSS to a remote office for offsite replication. We have a site to site VPN tunnel between the two sites however I cannot get the replication tasks to work through the VPN. It reports the following errors:

Error 33: Destination not found.
Error 12: Error in rsync protocol data stream.

If i create a new replication task and enter the IP of the destination it picks it up and finds the shares on the destination server but then will not replicate.

Any help would be greatly appreciated.

See if this helps.

http://kb.open-e.com/What-does-Error...ation_982.html

Also try to open port 873 or check to see if that is open if you have some firewall on the VPN but not sure if you do.