Mikrotik To ASA VPN issue

I have a Mikrotik to ASA VPN setup and it works fine if it is initiated from behind the ASA but if I try to initiate it from behind the Mikrotik, the tunnel does not come up. Under installed SAs I get Auth. Algorithm and Auth Encryption of none. and when it is initiated from behind he ASA, the auth Algorithm is SHA1 and the Auth Encryption is 3des.
I made sure I have a nat rule setup to allow traffic without masquerading. The Nat Rule is :
/ip firewall nat
add chain=srcnat dst-address=192.168.15.0/24 src-address=192.168.5.0/24
And it is the first rule in the order. Any help would be appreciated.

Thanks

Did you set up on both sides in the vpn sections also the aggressive mode?
Another thing is that mostly VPN connects over IPSec are running very well
in combination with Cisco equipment and what kind of VPN method you are using?

Did you set up on both sides static public IP Adresses?