I found one simple way, that helps me
I use armbian-config utiility, System -> Switch -> next
root@orangepipc:/media# uname -a
Linux orangepipc 4.13.16-sunxi #20 SMP Fri Nov 24 19:50:07 CET 2017 armv7l armv7l armv7l GNU/Linux
root@orangepipc:/media# mount -t cifs //192.168.1.5/D /media/share_test/ --verbose -o user=user,pass=verystrongpassword,vers=2.1
mount.cifs kernel mount options: ip=192.168.1.5,unc=\\192.168.1.5\D,vers=2.1,user=user,pass=********
root@orangepipc:/media# ll /media/share_test/
total 16196
/* List of files was ok */
Interesting moment: MAC address of ethernet card changed after change kernel
Владимир Титаренко got a reaction from pfeerick in Supporting smb2.1 or smb3 protocols for mount.cifs