Duplication running without optimized replication and “Replication failed 'Plug-in, server version mis-match” error is seen in the binary log (4040284)

Extract from binary log:

Error   2015/09/17 20:44:06   67   Data Plugin   NETVAULT   Replication failed 'Plug-in, server version mis-match'
Job Message   2015/09/17 20:44:06   67   Media   NETVAULT   Device 'DR4x00 (BAtoBH) - 192.168.152.231' has completed its transfer
Warning   2015/09/17 20:44:06   67   Data Plugin   NETVAULT   Replication method for stream cannot be used, falling back to standard stream copy method

Checked DR4100 software version and one was using software version 3.1 and the other was using software version 3.2

DR4100 software version mis-match

Upgrade the DR4100 running software version 3.1 to 3.2