We having an issue earlier where we having an issue to perform backup directly to the Exchange 2016 host/node. Somehow we manage to do it after getting help from the backup community in VOX.
Now, since we have a good backup, we tried to perform a restoration. We have tried a few time but failed with error code 5 and 2810. It seems that we cannot perform the restore by pointing to DAG or directly to exchange host/node.