NFS - connection timeout

Using FreeNAS 10 nightly.
I created NFS dataset in UI.
Added IPs of my systems:

View attachment 15724

View attachment 15725

But when I try to mount that NFS share, it doesn't work.
Ubuntu 16 (192.168.0.170):
root@ubhome:/mnt# mount -o tcp 192.168.0.142:/mnt/FN/NFS /mnt/freenas
mount.nfs: Connection timed out

ESX6 (192.168.0.23):
[root@localhost:/vmfs/volumes] esxcli storage nfs add --host=192.168.0.142 --volume-name=back-fn --share=/mnt/FN/NFS
Sysinfo error on operation...

NFS - connection timeout