no pull replication from freenas to truenas.

We would like to update Freenas to TrueNAS but make a replication backup first.
So we'd like to go from FreeNAS-11.3-U1 to TrueNAS-12.0-U2.1.
But nothing gets replicated

I configured a replication backup as below on TrueNAS to pull it from Freenas.

Like below :



Nothing gets replicated, nothing gets logged in (/var/logs/ ... )
Neither does manual replication work.
The hosts do resolve the job shows as finished.

When i...

no pull replication from freenas to truenas.